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A 770-kg race car can drive around an unbanked turn at a maximum speed of 42...

A 770-kg race car can drive around an unbanked turn at a maximum speed of 42 m/s without slipping. The turn has a radius of 160 m. Air flowing over the car's wing exerts a downward-pointing force (called the downforce) of 12000 N on the car. (a) What is the coefficient of static friction between the track and the car's tires? (b) What would be the maximum speed if no downforce acted on the car?

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Answer #1

Find the normal force acting on the car. Friction force will provide centripetal force for the car to go on the circle. Use this to find the coefficient of static friction between the track and the tire as shown below

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