How many types of Friction?

Definition of Friction:

A force acting in the opposite direction to the motion of the body is called force of friction or simply called friction.

Types of friction:

There are two types of friction and they are

1. Static Friction

2. Dynamic Friction

Static Friction:

The friction experienced by a body, when at rest is called static friction.

Dynamic Friction:

The friction experienced by a body, when in motion is called dynamic friction. It is also known as kinetic friction.

There are two types of dynamic friction

a. Sliding Friction

b. Rolling Friction

Sliding Friction:

The friction experienced by a body, when it slides another body is called sliding friction.

Rolling Friction:

The friction experienced by a body when balls or rollers are interposed between the two surfaces is called Rolling Friction.

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