Starting from rest, a particle rotates i...

Starting from rest, a particle rotates in a circle of radius R  2 m with an angular acceleration  = /4 rad/s2.The magnitude of average velocity of the particle over the time it rotates quarter circle is:

`1.5 m//s`

`2 m//s`

`1 m//s`

`1.25 m//s`

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