Pilings are driven into the ground at a building site by dropping a 2150 kg object...

Question:

Pilings are driven into the ground at a building site by dropping a 2150 kg object onto them. What change in gravitational potential energy does the object undergo if it is released from rest 17.0 m above the ground and ends up 1.90 m above the ground? change in gravitational potential energy: J

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