The rock in the figure below is suspended by a string tied to the ceiling and is

Question

The rock in the figure below is suspended by a string tied to the ceiling and is undergoing uniform circular motion in a horizontal plane. What is the direction of the net force on the rock?

It is along the string.It is toward the center of the circle.    It is downward (from gravity).The net force is zero.

The rock in the figure below is suspended by a string tied to the ceiling and is undergoing uniform circular motion in a horizontal plane. What is the direction of the net force on the rock? It is along the string.It is toward the center of the circle. It is downward (from gravity).The net force is zero.

Explanation / Answer

The net force acting on the rock is towards the center of the circle. Because force causing centripetal acceleration acts towards the center of the circular path and causes a change in direction of the velocity.

Hence correct option is "It is toward the center of the circle"

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