Question

A pendulum is swinging freely. The bob of pendulum has:

Options

• maximum K.E. at its extreme positions

• minimum K.E. at its mean position

• maximum K.E. at its mean position

• both minimum and maximum K.E. at its mean position

Answer 1

Maximum K.E. at its mean position

Explanation:

The bob moves fastest at the mean position, so its kinetic energy is maximum there. At the extreme positions, it momentarily stops, so its kinetic energy is zero.