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Riders on the "Great American Revolution" loop-the-loop roller coaster wear seatbelts as the roller coaster negotiates its 6.5m -radius loop with a speed of 9.8m/s. 1) At the top of the loop, what is the magnitude of the force exerted on a 55kg rider by the roller-coaster seat? 2) At the top of the loop, what is the magnitude of the force exerted on a 55kg rider by the seatbelt?

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