Question: if ep is gravitational potential energy of an object at...
Question details
If Ep is gravitational potential energy of an object at height h, write down which one of the following is true:
(A) g is always positive
(B) Ep is always positive if h increases
(C) g is negative for a falling object
(D) Ep is always defined as zero at the Earth’s surface
(E) g is constant everywhere in the universe
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