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Physics, 09.03.2021 20:10 nayellisoto15

4. A boy raises a 20.0-kg rock 1.50 m above the ground. a. What force does the boy use to raise the rock? Hint: What is the rock's weight?
b. How much work does he do?

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4. A boy raises a 20.0-kg rock 1.50 m above the ground. a. What force does the boy use to raise the...

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