Question

All of the below statements are correct for a uniform circular motion, except that:

• A. The speed of the body remains constant.
• B. The velocity of the body is continuously changing.
• C. Velocity is always perpendicular to radius of the circle.
• D. The distance is always equal to displacement.

Answer 1

The correct option is D The distance is always equal to displacement.

In a circular motion, whether uniform or not, distance travelled is different from displacement. When the object in circular motion returns to its initial point, the displacement becomes zero. Also, in uniform circular motion, the speed of the body is constant but the velocity of the body keeps changing. The direction of velocity is always perpendicular to the radius of circle in case of a circular motion.