True or False? The bearing surfaces of a preloaded ball joint are in loose, intermittent contact.

A ball carriers forward progress is stopped and the play is dead when, their flag is pulled, a knee touches the ground or the ball is dropped? True False

The batter is out when a a foul ball out in slow pitch softball? True False

Assertion (A): Ball bearings will be unable to serve their purpose if we ​replace the spheres with cubes.​Reason (R): Ball bearings replace sliding friction with rolling friction.

In which of the following is rotational movement possible?Multiple ChoiceSuture jointBall-and-socket jointCondylar jointHinge joint

True or False. Friction can be reduced by lubricating or changing the shape of objects.truefalse