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OpenStudy (anonymous):
Six Flags New England is installing a new roller coaster and they want to put in a 20m radius loop in the new coaster. How much speed must be carried into the loop in order for the centripetal acceleration to counteract gravity at the top of the loop? And what is the tangential velocity at this point?
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OpenStudy (anonymous):
What have you got so far? It's been some time since I've done rotational kinematics.
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