7. A 2-kg crate slides down a slope, with a distance of 2 meters, before it hits the ground. The slope has an angle of 300. Its coefficient of kinetic friction is 0.1. What is the work done on the crate by the friction? A. -3.39 J B. 1.73 J C. -3.24 J D. 4.00 J E. None

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Chapter5: The Laws Of Motion
Section: Chapter Questions
Problem 5.8OQ: An object of mass m is sliding with speed v, at some instant across a level tabletop, with which its...
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SUBJECT: PHYSICS

 
7. A 2-kg crate slides down a slope, with a distance of 2
meters, before it hits the ground. The slope has an angle
of 30o. Its coefficient of kinetic friction is 0.1. What is the
work done on the crate by the friction?
A. -3.39 J
B. 1.73 J
C. -3.24 J
D. 4.00 J
E. None
Transcribed Image Text:7. A 2-kg crate slides down a slope, with a distance of 2 meters, before it hits the ground. The slope has an angle of 30o. Its coefficient of kinetic friction is 0.1. What is the work done on the crate by the friction? A. -3.39 J B. 1.73 J C. -3.24 J D. 4.00 J E. None
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