Question

The length of a simple pendulum is 1 metre the mass of the bob is 0.1 kg the best taken towards one side until the third become horizontal and then released calculate the kinetic energy of the bob and the thread make an angle of zero degree 30 degree with the vertical

Answer 1

A pendulum is a weight suspended from a pivot so that it can swing freely. When a pendulum is displaced sideways from its resting, equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position.