Question

what is non periodic motion and with example

Answer 1

The motion which does not repeat itself after the regular interval of time is called non-periodic motion.

Example:

A footballer running on a field

Application of breaks in a moving vehicle

A ball rolling down the ground gradually slows down and finally stops.

Motion of tides in the sea.

Swaying of the branches of a tree

Motion of a bouncing ball under the action of gravity and friction

The running of a batsman between the wickets

Motion of the pestle in a mortar when operated manually.

Answer 2

the motion which does not repeat it's motion itself after some time interval
example: falling of objects which does not fall again and again itself

example of periodic motion: oscillation of particle, in this the particle move to and fro about the mean position