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The rotation of earth about its axis isA. Periodic motionB. simple hamronic motionC. periodic but not simple harmonic motionD. non-periodic motion |
Answer» Correct Answer - A::C Rotation of earth about its axis repeats its motion after inerval of time, so its motion is periodic . The rotation of earth is obviously not a to and frotype of motion about a fixed point, hence its motion is not an oscillation, Also this motion does not follow `S.H.M.` equation, `a alpha -x`. Hence, this motion is not a `S.H.M`. |
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