1. A 6.7 kg object initially starts from rest at the top of a ramp. The length of the ramp is 5.5 m and forms an angle of 23° above the horizontal. When the object reaches a height of 1.5 m, it has a speed of 3.0 m/s. Ramp -5.5 m m = 6.7 kg 1.5 m 23° What is the force of friction?

1. A 6.7 kg object initially starts from rest at the top of a ramp. The length of the ramp is 5.5 m and forms an angle of 23° above the horizontal. When the object reaches a height of 1.5 m, it has a speed of 3.0 m/s. Ramp -5.5 m m = 6.7 kg 1.5 m 23° What is the force of friction?

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And The Law Of Gravity

Section: Chapter Questions

Problem 32P

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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

1. A 6.7 kg object initially starts from rest at the top of a ramp. The length of the ramp is 5.5 m
and forms an angle of 23° above the horizontal. When the object reaches a height of 1.5 m,
it has a speed of 3.0 m/s.
Ramp
-5.5 m
m = 6.7 kg
1.5 m
23°
What is the force of friction?

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