Question

What type of motion is depicted by the point at the centre of a ball, when the ball rolls on a straight line path?

• A. Circular motion
• B. Rotational motion
• C. Oscillatory motion
• D. Rectilinear motion

Answer 1

The correct option is D Rectilinear motion

When the body moves in a straight line with respect to time, it is known as linear motion. The point at the centre of the ball depicts linear or rectilinear motion.

As the ball rolls on a straight line path, if we trace the path followed by the point at the centre of the ball, it will be linear and parallel to the straight line path on which the ball rolls.

When a body moves in a circular path with respect to time, it is known as circular motion.