The driver of a 1000-kg car tries to turn through a circle of radius 100 m on an unbanked curve at a speed of 10 m/s. The actual frictional force between the tires and a slippery road has a magnitude of 900 N. The car:
A) slides into the inside of the curve
B) makes the turn
C) slows down due to the frictinal force
D) makes the turn only if it goes faster
E) slides off to the outside of the curve

Question

Quizplus · Accepted Answer

The required centripetal force for the turn is (mv^2)/r = (1000*10^2)/100 = 1000 N. The available frictional force is only 900 N, which is insufficient, causing the car to slide off to the outside of the curve.

The Driver of a 1000-Kg Car Tries to Turn Through