Question

A particle moving with uniform speed in a circular path maintains:

1. Varying velocity and varying acceleration
2. Constant velociyt
3. Constant acceleration
4. Constant velocity but varying acceleration

Answer : varying velocity and varying acceleration

Solution -

Velocity and acceleration are vector quantity, and a vector can be changed by eighter changing its magnitude or direction.

When a particle moves with uniform speed in a circular path, magnitude of its velocity is constant but the direction is changing at every moment.

Since acceleration is rate of change in velocity, and direction of velocity is changing hence direction of acceleration is also changing every moment.

So, correct answer is option-1, Varying velocity and varying acceleration.