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A crate of mass 10.0 kg is pulled up a rough 20o- incline. The pulling force is 100 N parallel to the incline. The coefficient of kinetic friction is 0.4 and the crate is pulled 5.0 m. (a) How much work is done by gravity? (b) How much energy is lost due to friction? ( c) How much work is done by the 100N-force?

A crate of mass 10.0 kg is pulled up a rough 20o- incline. The pulling force is 100 N parallel to the incline. The coefficient of kinetic friction is 0.4 and the crate is pulled 5.0 m. (a) How much work is done by gravity? (b) How much energy is lost due to friction? ( c) How much work is done by the 100N-force?

Physics for Scientists and Engineers: Foundations and Connections
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter9: Energy In Nonisolated Systems
Section: Chapter Questions
Problem 17PQ
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A crate of mass 10.0 kg is pulled up a rough 20o- incline. The pulling force is 100 N parallel to the incline. The coefficient of kinetic friction is 0.4 and the crate is pulled 5.0 m.

(a) How much work is done by gravity?

(b) How much energy is lost due to friction?

( c) How much work is done by the 100N-force?

 

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