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28-09-2020
Physics

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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 instant it hits the ground? What is its velocity after it has fallen 25 m?

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apersonthateatsfries apersonthateatsfries

28-09-2020

Answer:

GPE = mgh = 5.00 kg .

 2.20 + 0.30 m = 122.5 J

Explanation:

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