Question

A body whose speed is constant
(a) Must be accelerated
(b) Might be accelerated
(c) Has a constant velocity
(d) Cannot be accelerated.

Answer 1

Answer:

b) might be accelerating, if body changes its direction

Answer 2

Answer:

A body whose speed is constant might be accelerated i.e.option(b).

Explanation:

A body speed can be velocity if its direction is specified.

The acceleration of a body is defined as the rate of change of velocity per unit of time. Both acceleration and velocity are vectors having both direction and magnitude. So even if the magnitude is constant its direction can change for example uniform circular motion the magnitude of the velocity is constant but the direction keeps on changing.

Hence, a body whose speed is constant the body might be accelerated due to direction.

So, the correct option is (b).