Question

The maximum frictional force, which comes into play, when a body just begins to slide over the surface of the other body, is known as

(a) static friction

(b) dynamic friction

(c) limiting friction

(d) coefficient of friction

I got this question in a national level competition.

This interesting question is from Friction of Pivot and Collar Bearing in division Friction of Machine Kinematics

Answer 1

The correct choice is (c) limiting friction

For explanation I would say: The friction, experienced by a body, when at rest, is known as static friction.

             The friction, experienced by a body, when in motion, is known as dynamic friction.

             The maximum frictional force, which comes into play, when a body just begins to slide over

             the surface of the other body, is known as limiting friction.