A curve of radius 138 m is banked at an angle of 11°. An 762-kg
car negotiates the curve at 82 km/h without skidding. Neglect
the effects of air drag and rolling friction. Find the
following. (a) the normal force exerted by the pavement on the
tires (b) the frictional force exerted by the pavement on the
tires (c) the minimum coefficient of static friction between the
pavement and the tires