If Ep is gravitational potential energy of an object at height h, write down which one...

Question

Question

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

Answer 1

Answer #1

Option (A) is correct.

Value of acceleration due to gravity might change to any value but it remains positive.

While gravitational potential energy is always negative, if it equals zero body escapes to universe.

Answer 2

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