A 4.0 kg block is initially at rest at a height of H=4.0 m on a ramp. The block then slides down a ramp and encounters a region of friction for Z=3.0 m Finally, stickperson pushes on the block for 4.0 m to bring the block to a stop. With what force did stickperson push to bring the block to a stop?

A 4.0 kg block is initially at rest at a height of H=4.0 m on a ramp. The block then slides down a ramp and encounters a region of friction for Z=3.0 m Finally, stickperson pushes on the block for 4.0 m to bring the block to a stop. With what force did stickperson push to bring the block to a stop?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 49P: A baseball catcher is performing a stunt for a television commercial. He will catch a baseball (mass...

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Concept explainers

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.

Question

A 4.0 kg block is initially at rest at a height of H=4.0 m on a ramp.
The block then slides down a ramp and encounters a region of friction for Z=3.0 m
Finally, stickperson pushes on the block for 4.0 m to bring the block to a stop.
With what force did stickperson push to bring the block to a stop?
no
friction
on ramp
3m
'Z' meters of friction
region of friction
uk = 0.21
no friction during
push
W

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Step 2: Calculate the velocity at the bottom of ramp

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Step 3: Calculate the velocity after the rough surface

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