Question

Can the speed of a body change if its velocity is constant. Explain

Answer 1

No, a particle cannot have varying speed with constant velocity. Velocity is a vector quantity; it is constant only when both magnitude and direction of the velocity are constant. If a particle has varying speed, it would mean that the corresponding velocity of the particle is also changing, as magnitude of the velocity (speed) is changing.

Answer 2

Hey Mate,

Velocity is a vector quantity. It is constant only when both magnitude and direction of the velocity are constant. So, your answer is no...