Question

Answer these questiins in Short​

Answer 1

Answer:

Explanation:

Friction opposes the surfaces in contact with each other ..hence friction depends upon the irregularities..

The friction between the two surfaces of the bodies which are in contact with each other is static friction and is most of the times greater than the sliding friction due to the force required to overcome it..

Examples where friction is used

1. The pen we write with

2. Between the tyre and the road.

3. Between the shoes and the floor.

Lubricant reduces the heat generated when the surfaces move so it helps in reducing friction...

Will answer other questions after some time .. now I need to go