Use the values RE = 6370 km = 3960 mi for the radius of the earth
The Acura NSX can brake from 60 mi/h to a stop in a distance of 112 ft. The car weighs 3250 lb. (a) If you assume that the vehicle’s deceleration is constant, what are its deceleration and the magnitude of the horizontal force its tires exert on the road? (b) If the car’s tires are at the limit of adhesion (i.e., slip is impending), and the normal force exerted on the car by the road equals the car’s weight, what is the coefficient of friction μs? (This analysis neglects the effects of horizontal and vertical aerodynamic forces.)
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