Question

Which of the following pairs of quantities cannot simultaneously be non-zero and constant for a body?

• A. Speed and velocity
• B. Distance and displacement
• C. Velocity and acceleration
• D. None of these

Answer 1

The correct option is C

Velocity and acceleration

Both acceleration and velocity cannot simultaneously be non-zero and constant.

If the acceleration is constant, the velocity changes and if velocity constant, acceleration is zero. (Zero is a constant, but it is asked for a non-zero constant)