Question

(1) Ball bearing are used to ___________.
(a) increase friction. (b) increase sound.
(c) decrease friction. (d) decrease weight.

Answer 1

Answer:

Ball bearing are used to Decrease Friction

.

Option C

Answer 2

(1) Ball bearing are used to (c) decrease friction

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

More Information:

A ball bearing is a type of rolling-element bearing that serves three main functions while it facilitates motion: it carries loads, reduces friction and positions moving machine parts. Ball bearings use balls to separate two “races,” or bearing rings, to reduce surface contact and friction across moving planes.

hope it helps you mate

:)