Question

A car moves on a circular road, describing equal angles about the centre in equal intervals of time. Which of the following statements about the velocity of the car are not true?

• A. Velocity is constant.
• B. Magnitude of velocity is constant but the direction changes.
• C. Both magnitude and direction of velocity change.
• D. Velocity is directed towards the centre of circle.

Answer 1

Answer: (A), (C), (D)

Velocity is directed towards the centre of circle.

Angular speed is constant. Hence, linear speed is also constant, ie., magnitude of velocity is constant, but direction is changing.
In a uniform circular motion, speed is constant and velocity is in tangential direction.