8. A boy pulls a 22.0-kg box with a 110-N force at 38° above a horizontal surface. If the coefficient of kinetic friction between the box and the horizontal surface is 0.19 and the box is pulled a distance of 30.0 m, what is the net work done on the box?

Principles of Physics: A Calculus-Based Text
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Chapter6: Energy Of A System
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8. A boy pulls a 22.0-kg box with a 110-N force at 38° above a horizontal surface. If the coefficient of kinetic friction between the box and the horizontal surface is 0.19 and the box is pulled a distance of 30.0 m, what is the net work done on the box?

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