Question

Why is gravitational potential energy always negative?

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Answer 1

Answer:

Gravitational potential energy is negative at the surface of Earth, because work is done by the gravitational field in bringing a mass from infinity i.e work has to be done on a body, if it is taken away from the gravitational field of the earth. Thus, potential energy is negative.

Answer 2

Explanation:

As Total energy is conserved, it must lose an equivalent amount of potential energy. ... Thus the gravitational potential energy is always negative.

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