Question

why centripetal force required circular motion?

Answer 1

Answer:

Explanation:

As the moon orbits the Earth, the force of gravity acting upon the moon provides the centripetal force required for circular motion. ... As the centripetal force acts upon an object moving in a circle at constant speed, the force always acts inward as the velocity of the object is directed tangent to the circle.

Answer 2

The direction of the net force is in the same direction as the acceleration. So for an object moving in a circle, there must be an inward force acting upon it in order to cause its inward acceleration. This is sometimes referred to as the centripetal force requirement.