Friction:
The Force acting along two surfaces in contact which opposes the motion of one body over the other is called the force of friction. It is very important in sports. Larger the area of contact between the surfaces, greater is the force of friction.
The friction is of three following types:
Static Friction: The opposing force that comes into play when one body tends to move over the surface but the actual motion has yet not started is called static friction.
Limiting Friction: Limiting friction is the maximum opposing force that comes into play when one body is just at the verge of moving over the surface of another body.
Kinetic Friction: Kinetic friction is the opposing force that comes into play when one body is actually moving over the surface of another body.
