Rotational Motion

The centripetal acceleration at the equator due to Earth's rotation is:
where
is the angular velocity of the Earth ( sec), m is the radius of the Earth. Substituting the values:
Thus, the correct answer is:

In a rotating frame of reference, two fictitious forces act on a particle: 1. Centrifugal force acts radially outward. 2. Coriolis force acts perpendicular to the velocity and rotation axis. Since both forces exist in a rotating frame, the correct answer is: