Acentripetal force causes circular motion because it accelerates an object

toward the center of a circle, which changes the direction of motion but not the speed.
toward the center of a circle, which changes the speed of motion but not the direction.
along the edge of a circle, which changes the direction of motion but not the speed.
along the edge of a circle, which changes the speed of motion but not the direction.

Correct answer choice is :

A) Toward the center of a circle, which changes the direction of motion but not the speed.

Explanation:

A centripetal force is a force that gives a body support a curved way. Its direction is always orthogonal to the motion of the body and towards the fixed point of the instant center of the curve of the path. The direction of the net energy is in the same direction as the acceleration. So for an object traveling in a circle, there must be an internal force acting upon it in order to create its internal acceleration. This is seldom related to as the centripetal force demand.