Question

Force of friction konsi hoti hai? Kinetic friction or static friction?

Answer 1

Answer:

Static friction is the force of friction on an object that is not moving.

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Answer 2

force of friction

Introduction

A force of friction is any force that opposes the motion of an object due to the contact of the object with other bodies.

Let us look at the following experiments.

1) Push an empty box on a smooth floor and then let go. It moves 1 or 2 meters and then stops. The force that stops the box is called force of friction. It is a force that opposes any motion.

2) Put some books (or any objects that have some weight) inside the box and push it again then let go. The box will move a distance smaller than when it was empty. The force of friction has acted again to stop the box. This time the force of friction is larger because it is proportional to the normal force exerted by the floor on the box which itself is equal to the weight of the box.

3) Try to push a large double bed, for example, and its does not move. In this case the force of friction is much larger than the force used to push the bed and therefore we talk here about static force of friction exerted by the floor on the bed.

Depending on whether object is moving or static, two types of forces of friction are possible: kinetic force of friction and static force of friction.