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CBSE - XI Science - Physics - Gravitation

where is the graviitational potential energy maximum?

Asked by Deepshikha deepsi 7th March 2013, 5:58 AM
Answered by Expert


Given that there is no reasonable criterion for preferring one particular finite r over another, there seem to be only two reasonable choices for the distance at which U becomes zero: and . The choice of at infinity may seem peculiar, and the consequence that gravitational energy is always negative may seem counterintuitive, but this choice allows gravitational potential energy values to be finite, albeit negative.
On that logic only answer given is surface of the earth.
Answered by Expert 11th March 2013, 4:10 PM

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