A pendulum is oscillating on either side of its rest position. The correct statement is :
A pendulum is oscillating on either side of its rest position. The correct statement is :

(a) It has only the kinetic energy at its each position.

(b) It has the maximum kinetic energy at its extreme position.

(c) It has the maximum potential energy at its mean position.

(d) The sum of its kinetic and potential energy remains constant throughout the motion.

Solutions:

The correct statement is

‘the sum of its kinetic and potential energy remains constant throughout the motion.