Physics

Problem

A simple pendulum of length 75 cm. describes a vertical semicircle. What is the velocity of the bob while passing through the mean position- (1)

\sqrt{7.4} \text{ ms}^{-1}

(2)

\sqrt{14.7} \text{ ms}^{-1}

(3)

\sqrt{22.2} \text{ ms}^{-1}

(4)

\sqrt{29.6} \text{ ms}^{-1}