Problem

The girl steadily pulls her end of the rope upward a distance of 0.4 m with a constant for...

The girl steadily pulls her end of the rope upward a distance of 0.4 m with a constant force of 50 N.

(a) By how much does the potential energy of the block increase?
(b) Show that the mass of the block is 10 kg.

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Solutions For Problems in Chapter 3

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