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A particle starts from rest and moves in...

A particle starts from rest and moves in a circular motion with constant angular acceleration of `2 rad s^-2`. Find
(a) Angular velocity
(b) Angular displacement of the particle after `4 s`.
( c) The number of revolutions completed by the particle during these `4 s`.
(d) If the radius of the circle is `10 cm`, find the magnitude and direction of net acceleration of the particle at the end of `4 s`.

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