A car moving around a tree has the distance from the tree defined as r – McqOptions

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1.	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.
A.	102
B.	108
C.	59
D.	54
Answer» C.

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