Does centripetal force acting on an object in uniform circular motion do work on the object?

For work, force must be in the direction of movement. Please stop posting under differing names.

The centripetal force does not do work on the object in uniform circular motion. This is because work is defined as the product of the force applied to an object and the displacement of the object in the direction of the force. In the case of uniform circular motion, the centripetal force acts perpendicular to the displacement of the object.

To understand this concept, we can break down the motion into its components. The object in uniform circular motion experiences a constant inward force, called the centripetal force, which keeps it moving in a circular path. However, this force is always directed toward the center of the circle, while the object continues moving tangentially along the circle's circumference.

Since the centripetal force and the displacement are perpendicular to each other, their dot product is zero, which means no work is done. Therefore, the centripetal force does not transfer energy or change the object's kinetic energy.

To calculate the work done on an object in a specific situation, such as a force acting in the direction of motion, you would multiply the magnitude of the force by the distance over which the force is applied. However, in the case of centripetal force and uniform circular motion, this calculation does not apply since the force and displacement are not in the same direction.