Question

Which type of motion is performed by a ball rolling on a straight road?

• A. Both rotational and rectilinear
• B.
  Only circular
• C.
  Only rectilinear
• D.
  Only rotational

Answer 1

The correct option is A Both rotational and rectilinear

Rectilinear motion: Motion of a body in a straight line.
Circular motion: Motion of a body on a circular path.
Rotational motion: Motion of a body about a fixed axis.

The ball rolling on the straight road rotates about the axis passing through the centre of the ball as well as moves forward in a straight line on the road.
Thus, the ball undergoes a rectilinear motion as well as rotational motion.