Question

what is friction ? Explain .​

Answer 1

Answer:

Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction: Dry friction is a force that opposes the relative lateral motion of two solid surfaces in contact. 

Answer 2

Explanation:

A fraction represents a part of a whole, or more generally, any number of equal parts. when spoken in everyday english ,a fraction describe how many parts of a certain size there are example - one - half, eight -fifth, three -quarter