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A child does 350 J of work while pulling a box from the ground up to his tree house with a rope. The tree house is 9.1 m abovPlease show the work for this!

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Answer #1

Work done= force×displacement

350 = mgh

350 = m × 9.8× 9.1

350/89.18 = m

3.92 kg = m

Therefore mass of box = 3.9 kg (correct option C )

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