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As we know gravitational force is a central force so due to gravitational effect they must collide with each other but why they revolve?

Qmechanic
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yogendra saini
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1 Answers1

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The incidence of falling apple inspired Newton to unify the of gravity on earth and the gravity in space. Both an apple and the moon "falling" to Earth by the same kind of force. The moon has large enough "horizontal" velocity to prevent it from "crashing" the earth but changes its direction all the time.

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Ng Chung Tak
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