Estimate how fast is the coaster moving

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Question: A roller coaster car is going over the top of a13-m-radius circular rise. At the top of the hill, the passengers "feel light," with an apparent weight only 60% of their true weight.

Part I: How fast is the coaster moving?

I need expert help to solve the above question and express your answer to two significant figures and include the appropriate units.

v =

Reference no: EM13719175

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