the net dynamic force acting on the shaft is equal to zero

the net couple due to the dynamic forces acting on the shaft is equal to zero

the net dynamic force acting on the shaft is equal to zero and the net couple due to the dynamic forces acting on the shaft is equal to zero

none of the above

Right

Wrong

Correct

Incorrect

Toothed gearing

Belt and rope drive

Ball and roller bearing

all of these

A rigid link rotates instantaneously relative to another link at the instantaneous centre for the configuration of the mechanism considered.

The two rigid links have no linear velocity relative to each other at the instantaneous centre.

The velocity of the instantaneous centre relative to any third rigid link is same whether the instantaneous centre is regarded as a point on the first rigid link or on the second rigid link.

all of the above