Question

Choose the wrong statement from the following.
A. Zero velocity of a particle does not necessarily mean that its acceleration is zero.
B. Zero acceleration of a particle does not necessarily mean that its velocity is zero.
C. If speed of a particle is constant, its acceleration must be zero.
D. None of these

Answer 1

If speed, that is the magnitude of velocity, is constant, whereas the direction of velocity changes, we cannot say that velocity is constant. Therefore, the particle has non-zero acceleration.