From the top of a 90 m high cliff, a student throws a rock vertically downwards with a velocity of 7 m/s. How long will it take for this rock to reach the bottom of the cliff? A.) 4.8 s B.) 5.1 s C.) 2.6 s D.) 3.6 s

From the top of a 90 m high cliff, a student throws a rock vertically downwards with a velocity of 7 m/s. How long will it take for this rock to reach the bottom of the cliff? A.) 4.8 s B.) 5.1 s C.) 2.6 s D.) 3.6 s

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter2: Kinematics

Section: Chapter Questions

Problem 47PE: (a) Calculate the height of a cliff if it takes 2.35 s for a rock to hit the ground when it is...

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Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –

Question

From the top of a 90 m high cliff, a student throws a rock vertically downwards with a velocity of 7 m/s. How long will it take for this rock to reach the bottom of the cliff?

A.) 4.8 s

B.) 5.1 s

C.) 2.6 s

D.) 3.6 s

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