Question

why does a ball moving on the ground eventually comes to rest

Answer 1

A ball comes to rest after moving on the ground due to friction.

Answer 2

A ball moving on ground, eventually comes to 'rest' because of the “Frictional force” between the ball and the ground.

Explanation:

Frictional force is force which generated when two surfaces are dragged over each other. These forces vary due to surface texture, amount of force, the angle at which the object is being dragged etc.

This force acts in the 'opposite direction' of the movement of object. This force can be reduced with help of lubricants such as oil.