019 10.0 points A block is released from rest, at a height h, and allowed to...

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Answer 1

Answer #1

Here , for the work done

work done = change in mechanical energy

work done = final mechanical energy - initial mechanical energy

work done = mA * g * hA - mA * g * h

work done = mA*g*(hA - h)

the work is done on block is 4) mA*g*(hA - h)

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Answer 2

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