It takes 5 seconds to complete 10 revolutions. The angular velocity of the object is given by the rate of change of angular displacement per unit time :
The centripetal acceleration of the object is given by :
So, the centripetal acceleration of the object is .
1. The iris regulates the amount of light entering the eye 2. The retina receives and organises visual information 3. The lens refracts light rays in a camera