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In the figure, a very small toy race car of mass m is released from rest on the loop-the-loop track. If it is released at a height 2R above the floor, how high is it above the floor when it leaves the track,
neglecting friction?
O 1.50 R
O 2.00 R
O 1.33 R
O 1.67 R
O 1.25 R

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