Question

What is the value of frictional force acting on a body if no external force is acting on it?

• A. $>0$
• B. Can't say
• C. $<0$
• D. $0$

Answer 1

The correct option is D $0$

When there is no external force acting on a stationary body, it tends to remain at rest.

Since there is no tendency of motion, there is no frictional force acting on body and it is equal to $0$.