Question

when direction changes with constant speed then change in velocity is there.Why ?​

Answer 1

Answer:

Because an object moving in uniform circular motion is moving in a circle with a uniform or constant speed. The velocity vector is constant in magnitude but changing in direction. ... It is accelerating because the direction of the velocity vector is changing.

Explanation:

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Answer 2

Answer:

we know velocity is a vector quantity.it has direction along with its amplitude. so if it's speed remains unchanged i.e it's amplitude is unchanged but for the the change in direction the velocity changes.