Question

On which of the following factors does the force of friction depend upon :

Choose the correct option from the codes given below:

• A. 1, 2 and 3
• B. 1 and 3
• C. 1 and 2
• D. 2 and 3

Answer 1

The correct option is C 1 and 2

The force which opposes the motion of one body over the other is called the force of friction.

1. On a horizontal surface, the force of friction is directly proportional to the weight of the body which moves.

2. The force of friction depends upon the nature of the surface in contact.

3. The force of friction doesn’t depend upon the area of the surfaces in contact.