Disturbed by speeding cars outside his workplace, Nobel laureate Arthur Holly Compton designed a speed bump (called the "Holly hump") and had it installed. Suppose a 1800−kg car passes over a hump in a roadway that follows the arc of a circle of radius 19.0 m as in the figure below. (i) (a) If the car travels at 26.4 km/h what force does the road exert on the car as the car passes the highest point of the hump? magnitude N direction (b) What is the maximum speed the car can have without losing contact with the road as it passes this highest point? km/h
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