The frictional force between two objects is not constant, but increases until it reaches a maximum value. When the frictional force is at its maximum, the body in question will either be moving or will be on the verge of moving. The Coefficient of Friction The coefficient of friction is a ...
The force resisting the motion of a rolling body on a surface is known as rolling friction. The friction depends on the load, diameter of the rolling object, and surface area of the object. Rolling of bike wheels and car tires are the examples of rolling