Question

When does friction come into play?

Answer 1

Explanation:

here's your answer...

»When the body is in rest or have tendency to move then it has static friction and when the body is in motion, the kinetic friction may oppose or may support the motion depending on the conditions. The direction of frictional forces is opposite of the Applied force on the object.

Answer 2

friction is well known as FRIEND as well as FOE when it takes plays then it is due to Foe