Question

Choose the correct statement :
(A) Rolling friction is greater than sliding friction
(B) Lubricant are used to increase friction
(C) Ball bearing are used to increase friction
(D) None of these​​

Answer 1

Explanation:

A) YES, THE ROLLING FRICTION IS GREATER THAN SLIDING FRICTION

B) NO, LUBRICANTS ARE USED TO DECREASE FRICTION.

C) NO, BALL BEARING IS USED DECREASE FRICTION.