Question

what is friction? what are the types of friction

Answer 1

There are four types of friction: static, sliding, rolling, and fluid friction. Static, sliding, and rolling friction occur between solid surfaces. Static friction is strongest, followed by sliding friction, and then rolling friction, which is weakest. Fluid friction occurs in fluids, which are liquids or gases.

Answer 2

the force experienced when two surfaces are in contact and a relative motion is called frictional force
basically of three types
rolling friction
sliding friction
static friction