Chapter 05, Problem 22
A 780-kg race car can drive around an unbanked turn at a maximum
speed of 43 m/s without slipping. The turn has a radius of 180 m.
Air flowing over the car's wing exerts a downward-pointing force
(called the downforce) of 11000 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
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