Question

what is centripital force and centripital acceleration? reply fast

Answer 1

When an object moves in a circle at a constant speed its velocity (which is a vector) is constantly changing. Its velocity is changing not because the magnitude of the velocity is changing but because its direction is. This constantly changing velocity means that the object is accelerating (centripetal acceleration). For this acceleration to happen there must be a resultant force, this force is called the centripetal force.

Answer 2

A force which acts on a body moving in a circular path and is directed towards the centre around which the body is moving is called centriletal force.

centripetal acceleration is the rate of change of tangential velocity