A 5 kg object is dropped from the top of a 40 m tall building. What is its initial potential energy? What is its velocity the in
stant it hits the ground? What is its velocity after it has fallen 25 m?
1 answer:
Answer:
GPE = mgh = 5.00 kg .
2.20 + 0.30 m = 122.5 J
Explanation:
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