A rock is thrown horizontally from a bridge and hits the water below 30 meters away in the horizontal direction. What is the speed of the rock just before it reaches the water 28.0 m below the point where the roc. 50 m/s 5 m/s 125 m/s 2 m/s See answers Advertisement PiaDeveau Speed of rock before impact is 50 m/s Given that; Time taken by rock from bridge = 5 seconds Find: What was the rock's average velocity as it fell? If it takes 1.70 seconds for the rock to reach the water below the bridge, how high was the bridge above the water? What initial velocity (in m/s) must you give the second stone if they are both to reach the ground at. You drop a penny off the bridge and it hits the water 4.2 seconds later, what is the height of the bridge? What is the speed of the rock just before it reaches the water 22.0 m below the point where th, A rock is dropped from a bridge and hits the water 3.2 seconds later. ), Rock (A) is dropped from a bridge and two seconds later, a second rock (B) is thrown at 8m/s. A rock is thrown from a bridge 19.5 m above water with an initial speed of 12.5 m/s. How high is the bridge in meters? Therefore, the rock's velocity as it hits the water is {eq}29.4\ \mathrm{m/s} {/eq}. A) 3 m B) 9.8 m C) 30 m D) 45 m, A rock is thrown horizontally from a bridge with a velocity of 13.0 m per s. It takes the rock 3.5 s to strike the water below. B) What will be the velocity of the rock, when it hits the ground? How long does it take to fall? b) How long i. A rock is thrown from a bridge 18 m above water with an initial speed of 16.5 m/s. A 12-kg rock falls from rest off a cliff and hits the ground in 1.5 seconds. 5. What initial velocity must you give the second, One stone is dropped from the side of a bridge, and a second is dropped from the same place short time later. The bridge is 30 m above the river. A rock is thrown off a bridge at an angle of 38degree above horizontal, and landed in the water 3.60 seconds later 60.0 meters from the point at the waters level directly below the thrower What is, While standing on a bridge 17.2 m above the ground, you drop a stone from rest. Find the final speed of the rock when it hits the water. How high is the bridge above the water? radius of the Earth. How high is the bridge? A diver running at 1,8 m.s dives out horizontally from the edge of a high vertical cliff. A rock thrown horizontally from a bridge hits the water below 30 meters away in the horizontal direction. You drop a rock and time how long it takes to hit the ground. i. How long would the rock have taken to reach the water if you had dropped it from the bridge instead? What is the velocity of the rock when it hits the bottom of the cliff? A rock is tossed straight up with a speed of 26 m / s. When it returns, it falls into a hole 13 m deep. An object is dropped from a cliff and reaches a velocity of 47.5 m/s at the time of impact. \\ a) How high is the cliff? In 3 more sec. 5 m/s. You throw a rock horizontally from a bridge over a pond and the rock hits the water in one second. What is the initial speed of the second object? How far from the bridge will the second stone land? i. (a) What is the rocks velocity as it hits the bottom of the hole? copyright 2003-2023 Homework.Study.com. What was its initial velocity? It takes 2.4 s to hit the water. Find the distance the stone falls during the first 2 seconds of its motion. If the time is 2.3 seconds, what is the height of the bridge? A rock is tossed straight up with a speed of 17 m/s. b) How high (in metres) is the bridge ; A rock is dropped from a bridge to the water below. What is the speed of the stone just befo. Three seconds after the rock is dropped, the speed of the rock will be (Neglecting air friction) A) 44.1 m/s B) 29.4 m/s C) 9.8 m/s D) 19.3 m/s E) 33.2 m/s. Transcribed image text: A rock dropped from a bridge takes 3.35 to hit the water. About how high is the bridge? A) What is the rock's velocity when it hits the water? If the splash is heard 1.08 seconds later, what was the initial speed of the rock? Find the speed of the rock as it hits the water. All rights reserved. If the splash is heard 1.20 seconds later, what was the initial speed of the rock? a) Find the speed (in m/s) of the rock as it hits the water. They both reach the water 35.0 m below at the same instant. A) 1.0 s B) 2.0 s C) 3.0 s D) 4.0 s 11.An object dropped from rest will have a velocity of approximately 30. meters per second at the end of A) 9.81 m/s B) 19.6 m/s C) 29.4 m/s D . (b) How far from the bridge will it land? If the cliff is 25 m tall, how fast (in m/s) is the diver going as she enters the water below, and how long (in s) did the diver fall before reaching the water? The 52% is a statistic representing a sample of 443,818 community college students. A rock, dropped from a bridge, takes 3.21 seconds to hit the water. b) how fast is it traveling? a) What is the rock's velocity as it hits the bottom of the hole? Which of the following best represents the rock's speed just before impact? of the tree to be 63, how far from the base of the tree am I? Rock (A) is dropped from a bridge and two seconds later, a second rock (B) is thrown at 8m/s. To determine the height of a bridge above the water, a person drops a stone and measures the time it takes for it to hit the water. If the rock was in the air for 2 seconds, how tall is the bridge? You drop a rock and time how long it takes to hit the ground. 2003-2023 Chegg Inc. All rights reserved. \\ a. What was the rock's velocity when it hit the water? How many seconds after being thrown does the rock strike the ground? If the rock was in the air for 2 seconds, how tall is the bridge? , Two point charges are separated by a distance d. The first has a charge of A rock is dropped from a bridge. (a) What is the rocks velocity as it hits the bottom of the hole? A rock is dropped from a bridge and hits the water 3.2 seconds later. A rock dropped off a bridge takes 5 seconds tohit the water. A rock is thrown straight down with an initial speed of 10 m/s from a bridge to the water below. How high is the bridge? (Answer in units of m/s. After 4 s, what is the rock's velocity? How far above the ground is the stone 1.60 seconds before it reaches the ground? A diver running 1.6 m\,s' dives out horizontally from the edge of a vertical cliff and 3.5 s later reaches the water below.How high was the cliff? It hits the. Since the rug was just dropped, its initial speed was zero. [1]A2BCDAmplitude844Wavelength44 A rock falls off of a bridge and hits the water 7 seconds later. When the stone has fallen 4.20 m, you throw a second stone straight down. A stone is dropped off a cliff. What is the rock's velocity as it hits the bottom of the hole? OC. It takes 2.75 s for the rock to hit the water. When it returns, it falls into a hole 10 meters deep. (1) How fast will it be moving as it hit. A rock is dropped from a bridge to the water below. Suppose a plane drops water from 1024 feet. asked by jer 4 answers after falling for 2 s . When the stone has fallen 3.10 m, you throw a second stone straight down. Find the height from which it dropped and final velocity. While standing on a bridge 17.2 m above the ground, you drop a stone from rest. Free-fall is a type of motion of an object when it is dropped from a certain height under the force of gravity and the air resistance is neglected. How long does it take the rock to reach the ground? If it takes 2.37 seconds for a stone to hit the ground from a cliff. Find the velocity of the rock as it hit the water Note gravity in metric 9.81 m per s^2 same uni. It starts from rest, and falls freely for 1.48 seconds before reaching the ground at the base of the cliff. If a rock is dropped: (a) How fast is it going (ft/s) after 2.58 seconds? When the stone has fallen 3.10 m, you throw a second stone straight down. 3.0 m/s The average speed of a plane was 600 kilometeres per hour. a cannonball is fired from ground level at a speed of 300 m/s and an angle of 55 degrees above horizontal. You stand at the top of a 50 m cliff and throw a rock up into the air at 20 m/s, as shown below. A baseball dropped from the roof of a tall building takes 3.1 seconds to hit the ground. (b) How long is the rock in t, While standing on a bridge 17.2 m above the ground, you drop a stone from rest. harder than they thought they could to meet an instructor's standards or expectations. (b) What is its speed when it. {eq}t = 5.25 \ s It falls 24 m to the water below. speed of the object 1 m/s When it returns, it falls into a hole 9 m deep. How high is the bridge? answer It takes 5.25 seconds for the rock to hit the water. a. It bounces off the wall and returns to its starting point after an additional 0.5 seconds. The rock reaches a maximum height of 20.4 meters above the top of the cliff before falling to the base of the cliff, landing 5.56 seconds after it was thrown. How long does it take to hit the water? A stone fired straight upwards from the top a 50 m high bridge fall into water below it 12 seconds later. How fast is it moving when it hits the water 2.5s later . All other trademarks and copyrights are the property of their respective owners. An Astronaut on the Moon drops a rock straight downward from a height of 1.25 meters. A stone is projected horizontally with a speed of 4 m/s from a bridge 6 m above the river. Engagement (CCSSE) between 2009 a A rock is thrown straight up from a cliff which is 38 meters above the ground. Assume free fall. A rock is dropped from a bridge to the water below. 1) 5 m/s 2) 2 m/s 3) 50 m/s 4) 125 m/s 19.A rock dropped off a bridge takes 5 seconds to hit the water. (1) 5 m/s (2) 2 m/s (1) 1 s (2) 2 s 2. What was the rock's average velocity as it fell? D. It increases by a factor of 3. a In the transverse wave shown in Figure 3.1.20 distances are in centimetres. What initial velocity must you give the second. A second object is thrown downwards 2.00s later. b) How high is the bridge above the water? b) How high (in metres) is the bridge, A rock is dropped from a bridge to the water below. How many seconds does it take to reach the ground? Their velocities increase at the same rate. How high is the bridge in meters? If the splash is heard 1.08 seconds later, what was the initial speed of the rock? How long is the rock in the air, from the instant it is released until it hits th. It falls 24 m to the water below. A rock dropped off a bridge takes 5 seconds to hit the water. What initial velocity must you give the second, While standing on a bridge 15.0 m above the ground, you drop a stone from rest. A girl attempts to swim directly across a stream 15 meters wide. What is its speed (b) when it, A bolt is dropped from a bridge under construction, falling 81 m to the valley below the bridge. What is the speed of the rock just before, A rock is tossed straight up with a speed of 28 m/s. What was the rock's velocity when it hit the water? A rock thrown horizontally from a bridge hits the water below 30 meters away in the horizontal direction. How high was the cliff? C) What is the height of the bridge above the water? c. What is its kinetic energy as it hits the, If you drop a rock from a bridge, how fast is it going in three seconds? When it returns, it falls into a hole 11 m deep. It takes 2.40 s for the rock to hit the water. A rock is thrown straight down with an initial speed of 10 m/s from a bridge to the water below. How fast will the rock be traveling when it hits the water? How fast was the rock going to impact? A tennis player hits a ball 1 meter above the ground with a velocity of 20 m/sec. (C) How high was the bridge? If the rock takes 10 seconds to hit the ground, how high is the cliff? The initial velocity of the rock is {eq}u\ =\ 0\ \rm m/s{/eq}. A child on a bridge throws a rock straight down to the water below. How long was the rock in the air? ejt310 ejt310 05/07/2021 Mathematics High School answered 5. A rock is dropped from a bridge to the water below. How many seconds will it take for the water to hit the ground? When the stone has fallen 3.10 m, you throw a second stone straight down. How much time elapses before the rock hits the water? What is its velocity when it reaches the ground? When it returns, it falls into a hole 20.1 meters deep. A rock dropped off a bridge takes 5 seconds to hit the water. What is its speed just before hitting? {/eq} is the time of the flight; {eq}g = 9.8 \ m/s^2 Which pair of entries A to D is correct? Learn the use of these equations to solve kinematics problems using math. If it takes 1.70 seconds for the rock to reach the water below the bridge, how high; A rock dropped from . /HOUR, and USE SCIENTIFIC NOTATION. We are asked to calculate the rock's average velocity as it fell. The sound of the splash reaches the deck 3 seconds later. It takes 2.75 \ s for the rock to hit the water. If the acceleration due to a) Find the speed of the rock as it hit the water. Which of the following is a true statement? Stop procrastinating with our smart planner features. You throw a small rock straight up from the edge of a highway bridge that crosses a river. b) How long i. A2.50 N rock is thrown down from a cliff at 10.0 m/s. The rock's speed just before impact is 49 m/s and it will be the maximum speed of the rock. How fast will the rock be traveling when it hits the water? How deep is the well and what is the impact velocity with which the rock hits the water? Three seconds after the rock is dropped, the speed of the rock will be (Neglecting air friction) A) 44.1 m/s B) 29.4 m/s C) 9.8 m/s D) 19.3 m/s E) 33.2 m/s. How long is the rock in the air, from the instant it is release. a) Find the speed of the rock as it hit the water. A person drops a small rock from a bridge. A stone is thrown upward from a bridge at a speed of 10 m/s. (b) What is the stones final velocity when it hits the ground? A) What is the rock's velocity when it hits the water? When it returns, it falls into a hole 22.5 m deep. (a) What is the rock's velocity as it hits the bottom of the hole? Which graph represents the relationship between the speed of a freely falling object and the time of fall of the object near Earth's surface A rock is dropped from a bridge. A rock is dropped from a height of 2.5 meters. Which of the following best represents the rock's speed just before impact? (b) What is the stones final velocity when it hits the ground? How high above the bridge did it go? How deep is the well and what is the impact velocity with which the rock hits the water? \\ c. What. A rock is dropped from a bridge into the water below. What is the magnitude of the velocity of the rock just before it hits th. (a) What was the rock's velocity when it hit the water? Sign up for free to discover our expert answers. The acceleration of the rock is constant. A rock is tossed straight up with a velocity of 32.1 m/s. A penny is dropped from a 50 m high bridge, how fast was the penny moving when it hit the water? Assuming negligible air resistance, what is the speed that the rock hits the water with, in meters per second? (use a constant acceleration of 10 m/s^2 ). How long would the rock have taken to reach the water if you had dropped it from the bridge instead? Everything you need for your studies in one place. The table shows the marks, The minute hand of a clock is 1.7 centimeters long. Agent Bond is standing on a bridge, 15 m above the road below, and his pursuers are getting too close for comfort. A rock is dropped off the side of a bridge and hits the water below 3 seconds later. A rock, dropped from a bridge, takes 3.21 seconds to hit the water. A rock is thrown from a bridge 19 m above water with an initial speed of 14 m/s. How much time does it take to pass through the last 19% of its fall? 5) A rock is dropped off of the top of a bridge. How long does the rock stay in the air? A rock is dropped from a cliff and strikes the ground below with a velocity of 94 m/s. How high is the cliff ? \\ a. Please provide workings. A rock is thrown vertically with a velocity of 21\ \mathrm{m/s} from the edge of a bridge 41\ \mathrm{m} above the river. if the bridge is 225 m above the water surface a) which rock will strikes the water first? A rock is dropped in a well and it takes 7.0 seconds before you hear the splash below. How tall is the building? A) What is the rock's velocity as it hits the bottom of the hole? How high is the bridge above the water? How far from the bridge will the second stone land? ii. A second stone is dropped 1.25 seconds later. Answer and Explanation: 1 Become a Study.com member to unlock this answer! What is its velocity when it reaches the ground? Every year, the earth travels about 109 km as it orbits the sun. What is the rock's velocity as it hits the bottom of the hole? A rock is thrown vertically down from a bridge with an initial velocity of 30 m/s and strikes the water in 2.0 sec. When the stone has fallen 5.00 m, you throw a second stone straight down. How long will it take the rock to hit the water? the impact velocity is .. 2.00 s * g = 18.6 m/s the average velocity is half of the impact velocity . b. velocity as it hits the water 125 m below? A rock is tossed straight up with a velocity of 33.9 m / s. When it returns, it falls into a hole 11.9 m deep. (b) How long is the rock in the air, A stone is thrown vertically upward with a speed of 10.0 m/s from the edge of a cliff 59.0 m high. What is the rock's velocity as it hits the bottom of the hole? it is seen to hit the ground 3.5 seconds later. Explain. A rock is thrown straight down with an initial speed of 10 m/s from a bridge to the water below. Get access to this video and our entire Q&A library. What is the speed of the rock just before it, A rock is tossed straight up with a speed of 26 m / s. When it returns, it falls into a hole 13 m deep. a) Find the speed (in m/s) of the rock as it hits the water. . A rock is tossed straight up from the ground with a speed of 25 m/s. It takes 5.25 seconds for the rock to hit the A rock is dropped off the side of a bridge and hits the water below 3 seconds later. The kinematic equation relating the final velocity with the initial velocity, acceleration, and time is as follows: We are asked to calculate the rock's velocity when it hits the water. When a small rock is thrown straight up from the edge of a highway bridge that crosses a river. (use a constant acceleration of 10 m/s^2 ), A 2.00 lb rock is dropped from a bridge to the water 50 ft below. How high is the bridge above the water? During free-fall, the rock moves in the downward direction under the effect of gravity. A girl throws a rock horizontally, with a velocity of 10 m/s, from a bridge. A) What is A rock is dropped of the side of a bridge and hits the water below 4s later. If it takes 1.70 seconds for the rock to reach the water below the bridge, how high was the bridge above the water? When the stone has fallen 3.10 m, you throw a second stone straight down. The point where the child released the rock is 94 m above the water and it took 2.7 s for the rock to reach the water. How long is the rock in the air, from the instant it is release. b. If the rock takes 10 seconds to hit the ground, how high is the cliff? Find the speed of the rock: A) After 5 seconds Estimate how many minutes it will take to drive 200 miles assuming an average speed of 45 mph. A rock is thrown horizontally from a bridge with a velocity of 13.0 m per s. It takes the rock 3.5 s to strike the water below. A rock is dropped from a height of 2.5 meters. A rock is thrown downward into a well that is 8.58 m deep. The second rock also moves downward with acceleration due to gravity. When the stone has fallen 3.20 m, you throw a second stone straight down. How many meters does a free-falling rock fall in 5 seconds? A) How long will it take for the rock to reach the ground? How high is the bridge? (a) How much time does it take to pass through the last 18 % of its fall? What is the velocity of the rock as it hits the water in meters per second? Approximately what was the rock'svelocity(1) 5 m/s just before impact? How long does it take to hit the water? After 4 s, what is the rock's velocity? (a) How long will the rock be in the air? Find the final speed of the rock when it hits the water. Approximately what was the rock's velocity just before impact? What is the rock's velocity as it hits the bottom of the hole? a) How high is the cliff? The formula to model the height of an object t seconds after it has been dropped is . How high is the bridge above water? Find the range in meters and its maximum he A rock is dropped off a cliff. Which of the following best represents the rock's speed just before impact? What is the magnitude of the velocity of the rock just before it hits th. Why? Assuming the Earth's mean radius to be 6400 km, calculate the period of the satellite in orbit in hours. a.) We are asked to calculate the height of the bridge above the water. A rock is thrown from a bridge at an upward launch angle of 30^\circ with an initial speed of 25 m/s. It takes 2.4 s to hit the water. a. How high is the bridge? What is the magnitude of the velocity of the rock just before it hits the water? How far (in m) does the rock travel horizontally before hitting the water? If a rock is dropped: (a) How fast is it going (ft/s) after 2.58 seconds? By using one of the kinematic equations of motion, we will calculate the height of Our experts can answer your tough homework and study questions. a. A rock is dropped from a bridge and hits the water 3.2 seconds later. If it falls for 2.00 seconds, what is its average velocity? 125 m/s. Presuming there is no air resistance (drag) The rock will have been accerated for 7 sec with the acceleration of gravity, so the speed will be: v=gxxt->v=9.81xx7=68.67m//s BTW: This bridge would be very high: travelled distance in 7 sec: s=1/2xxgxxt^2~~233m It narrowly misses the bridge on the way back down, and hits the water at 30m/s. What is the time it took to hit the water? A rock is tossed straight up with a speed of 14 meters/second. Ig, A rock is dropped, from the top of a 100 meter tall cliff. The bridge is about? A rock is tossed straight up with a velocity of 33.3 m/s. (b) What was the rock's average velocity as it fell? It take 2.4 s to hit water fid the final speed of the rock when it hits the water. Kinematics problems analyze classical mechanics of motion using four standard mathematical equations. A stone is dropped, from rest, from a high bridge and falls vertically. b) How high (in metres) is the bridge. A rock falls off of a bridge and hits the water 7 seconds later. A rock is thrown horizontally with a velocity of 20.0 m/s from a bridge 30.0 m high. How does the electric potential A rock is tossed straight up from the ground with a speed of 25 m/s. 9.81 m/s the 2 makes things fairly simple , A total of 443,818 students at 699 community colleges in 48 states completed the Community College Survey of Student c. What is its kinetic energy as it hits the. As it glides, it experiences a force of . Assuming negligible air resistance, what is the speed that the rock hits the water with, in meters per second? How far from the water is the bridge (in units of meters to 3 decimal plac. A rock is thrown horizontally from a bridge 75 m high with a velocity of 12 m/s. If the stone hit's the water 2.00 seconds later what is the height of the brid, A bolt is dropped from a bridge under construction, falling 92 m to the valley below the bridge. How far does the rock travel horizontally before striking the water? b. A rock is dropped off the side of a bridge and hits the water below 4.3 s later. In air, the falling object would reach terminal speed. (b) How far does the stone travel from the bottom e, A rock is dropped from a tall bridge with no initial velocity. How far from the water is the bridge (in units of meters to 3 decimal places)? It takes 2.4s to hit the water. Answer and Explanation: 1 Become a Study.com member to unlock this answer! After 2 seconds the rock is at 21.3 meters above the ground. What is the speed of the rock just before, You throw a small rock straight up from the edge of a highway bridge that crosses a river. It takes 5.25 seconds for the rock to hit the water. A. A rock is dropped off a cliff. What is its speed? The acceleration of gravity is 9.8 m/s^2. 09/29/2022 Physics High School answered expert verified A rock dropped off a bridge takes 5 seconds to hit the water. How high is the bridge, in A person drops a small rock from a bridge. what will be its speed when it strokes the ground at the base of the cliff? (b) How far from the bridge will it land? You also have the option to opt-out of these cookies. How many poles is it? View Answer Q: please help M.VAILS Name: 1.