Question

A pendulum consists of a small mass m at the end of a string of length a. The pendulum is pulled aside
to an angle α with the vertical and released. At the instant of release, using the point of suspension as
axis, find: a) torque on the pendulum. b) its angular acceleration.

Answer 1

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.