Question

Identify the type of force used in the picture given below activity. ​

Answer 1

Answer:

The force is frictional force.

Explanation:

The ball is going towards the right . And the frictional force is acting towards the left side, to stop it

Answer 2

Answer:

Explanation:

The force in the given picture is friction force.

As per given picture ,

the ball wants to move towards but the force of friction is acting backwards.

And due to friction force the ball started rotating from top to bottom in forwards direction.

There are three kinds of force of friction.

°Static friction

°Kinetic friction

°Limiting friction

Static friction-

The force of friction acting on the surface of  body when body is at rest.

$fs \leq uN$

$u = coefficient ~of ~static~ friction$

Kinetic friction-

The force of friction acting on the surface of body when the body is at motion.

$fk = uN$

$N= normal~force$

$u=coefficient~of~static~friction$

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