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A 20 kg rock is on the edge of a 100 meter cliff. What is the potential energy of the rock and if the rock falls off the cliff, what is its kinetic energy just before striking t…

A 20 kg rock is on the edge of a 100 meter cliff. What is the potential energy of the rock and if the rock falls off the cliff, what is its kinetic energy just before striking t…
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A 20 kg rock is on the edge of a 100 meter cliff. What is the

potential energy of the rock and if the rock falls off the cliff,

what is its kinetic energy just before striking the ground?

a 361. 4 kJ

b 1kJ. 1 kJ

C 19. 6 kJ, 19. 6 kJ

d 10 kl. 5. 5 ku

User Antoine Pelisse
by
8.1k points

1 Answer

5 votes

Answer:

Explanation:substitute the values for equation PE=m/vg×

User Aurelian Cotuna
by
8.2k points
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