A car moving around a tree has the distance from the tree defined as r = 5t2 + 7. What is the magnitude of the centripetal acceleration at t = 2s, if the angular velocity is 2 rad/s.

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Non-uniform circular motion denotes a change in the speed of a particle moving along a circular path.


A car moving around a tree has the distance from the tree defined as r = 5t<sup>2</sup> + 7. What is the magnitude of the centripetal acceleration at t = 2s, if the angular velocity is 2 rad/s.