A box with a mass of 37.0 kg is pushed with a horizontal force of 150 N. The box moves at a constant speed across a level, rough plane a distance of 5.15 m. (a)What is the work done (in J) by the 150 N force? (b)What is the coefficient of kinetic friction between the box and the plane?

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Asked Dec 8, 2019
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A box with a mass of 37.0 kg is pushed with a horizontal force of 150 N. The box moves at a constant speed across a level, rough plane a distance of 5.15 m.
 
(a)
What is the work done (in J) by the 150 N force?
 
(b)
What is the coefficient of kinetic friction between the box and the plane?
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Expert Answer

Step 1

a)

The required work...

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W = Fd =(150)(5.15) = 772.5J

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