Question

The earth rotation and revolution are both periodic motions. How ?​

Answer 1

Answer:

Rotation of the Earth is its turning on its axis. Revolution is the movement of the Earth around the Sun. The Earth takes 24 hours to complete a rotation with respect to the sun. ... The Earth's orbit is elliptical.

Answer 2

Answer:

1 Answer. (a, c) Rotation of earth about its axis repeats its motion after a fixed interval of lime, so its motion is periodic. The rotation of earth is obviously not a to and fro type of motion about a fixed point, hence its motion is not an oscillation. ... Hence, this motion is not a S.H.M.

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