A child exerts a horizontal 15 N force on a 10 kg box to push it 7 m across a floor that has a coefficient of kinetic friction of 0.1 with the box.  (a) How much work does the child do on the box?  (b) How much work does gravity do on the box?  (c) How much work does the normal force do on the box?  (d) How much work does the force of kinetic friction do on the box?  (e)  What is the total work done on the box?  (f) How much kinetic energy has the box gained during this process?  (g)  If the box was initially at rest, then how fast is the box

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A child exerts a horizontal 15 N force on a 10 kg box to push it 7 m across a floor that has a coefficient of kinetic friction of 0.1 with the box.  (a) How much work does the child do on the box?  (b) How much work does gravity do on the box?  (c) How much work does the normal force do on the box?  (d) How much work does the force of kinetic friction do on the box?  (e)  What is the total work done on the box?  (f) How much kinetic energy has the box gained during this process?  (g)  If the box was initially at rest, then how fast is the box moving at the end of this process? 

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