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A sports car is accelerating up a hill that rises 20.5 above the horizontal. The coefficient of static friction between the wheels and the

A sports car is accelerating up a hill that rises 20.5 ° above the horizontal. The coefficient of static friction between the wheels and the road is μs = 0.877. It is the static frictional force that propels the car forward. (a) What is the magnitude of the maximum acceleration that the car can have? (b) What is the magnitude of the maximum acceleration if the car is being driven down the hill?

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