A 10-kg rock is dropped and hits the ground below at a speed of 60 m/s. Calculate the gravitational potential energy of the rock before it was dropped.
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Answer:
Gravitational Potential Energy = 18000J
Explanation:
By Energy Conservation,
mgh = 1/2mv²
G.P.E = 1/2 × 10 × 3600
Therefore, G.P.E is 18000J
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