which force help earth to revolve and rotate?
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Heya user
Gravitational force helps earth to revolve and rotate.
Have a great day ahead ^_^
Gravitational force helps earth to revolve and rotate.
Have a great day ahead ^_^
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No force is needed because there is no resistive force trying to slow the earth down, so in a sense it rotates now because it rotated before: angular momentum. To a good approximation, the planets and sun exert zero rotational (as opposed to linear gravitational) forces on each other. However, there are subtle couplings related to deformations of the planets, which is why for example the moon rotates so that one hemisphere is always visible from earth. By a similar mechanism the earth's rate of rotation could also change.
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