# he average NASCAR race car weighs 3400 lb. At a recent Nascar race the cars went flying around the banked curves at a raceway. The banking of the…

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(e) If the car is going around the curve at a speed of 170 mph calculate the centripetal force acting on the car.

(f) Suppose the curve was not banked. For the same radius, what centripetal force will be needed to keep the car going around the curve at the same speed of 170 mph? Note: in the case of an unbanked curve, friction force will be needed to provide the centripetal force.

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