Question

why sliding friction is slightly less than static friction

Answer 1

Hey there !

The friction is due to the interlocking of irregularities in the two surfaces. When the object starts sliding the contact points on its surface, do not get enough time to lock into the contact points on the floor. So thesliding friction is slightly less than thestatic friction.

Hope it helps you !

Answer 2

$\huge\mathfrak\pink{Answer}$

sliding friction is slightly lesser than that of the static friction because it is easy to move the object which already in motion than the object which is at rest.