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Physics, 26.02.2021 22:10 orlando19882000
3)110 Watts of power was used to move a 50 kg rock 50 m in 30 s. How much work was needed and
how much force was used to accomplish this? The rock then fell 75 m off a cliff, what wasits
gravitational potential energy of the rock at the top of the cliff? What was its speed just before therock
hit the ground at the bottom of the cliff?
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Answers: 3
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3)110 Watts of power was used to move a 50 kg rock 50 m in 30 s. How much work was needed and
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