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The moon is experiencing a gravitational force due to the earth and is revolving around the earthin a circular orbit. How much work is done by the moon |
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Answer» Work done by forces and not by a mass either Moon or Earth. Here the average work done by gravitational force between Moon and Earth is zero. Reason is that displacement is along the tangential direction to the circular orbit. The force is always along the radial line inwards. So the dot product is always 0. As work done is always zero , the kinetic energy remains same. Potential energy remains the same. |
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