A student with a mass of 70 kg sits in a roller coaster
A student with a mass of 70 kg sits in a roller coaster that has a vertical loop of radius r=20 m. If the speed of the roller coaster is 20 m/s, what is the Normal force exerted by the seat on the student at the bottom of the loop?
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a student with a mass of 70 kg sits in a roller coaster that has a vertical loop of radius r20 m if the speed of the
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