A 600-kg car traveling at 30.0 m/s is going around a curve having a radius of 120 m that is banked at an angle of 25.0°. The coefficient of static friction between the car's tires and the road is 0.300. What is the magnitude of the force exerted by friction on the car?
A) 1590 N
B) 3430 N
C) 7240 N
D) 7820 N
E) 795 N

Question

Quizplus · Accepted Answer

The correct answer is A because the magnitude of the force exerted by friction on the car is 1590 N. This is because the force of friction is equal to the coefficient of static friction times the normal force, which is equal to the weight of the car minus the component of the normal force that is perpendicular to the road.

A 600-Kg Car Traveling at 30