A ball is held a distance of 20m above the ground its mass, Ask an Expert

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A ball is held a distance of 20m above the ground. It's mass 6kg.

A) what is it's potential energy(PE) at this point?

B) the ball dropped. What is it's PE 8m above the ground?

C) what it's kinetic energy(kE) 8m above the ground? Use conservation of energy.

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