Question

A girl has a pendulum which she made by tying a stone to a thread
. What is the time period of the pendulum

Answer 1

If an object in periodic motion moves in such a way that in half of its time period its direction of motion becomes opposite but the path remain same which is oscillatory motion.A simple pendulum move in one direction in half of its time period and moves in the same path but in opposite direction in second half of direction.This is pendulum of oscillatory motion