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A particle is rotating in a circle. When...

A particle is rotating in a circle. When it is at point A its speed is V. The speed increases to 2 V by the time the particle moves to B. Find the magnitude of change in velocity of the particle as it travels from A to B. Also, find `vec(V_(A)) vec(DeltaV)`, where `vec(V_(A))` is its velocity at point A and `vec(DeltaV)` is change in velocity as it moves from A to B.

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The correct Answer is:
`sqrt(3)v`, zero
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