A driver in a 1000.0 kg car traveling at 24 m/s slams on the brakes and skids to a stop.If the coefficient of friction between the tires and the road is 0.80,how long will the skid marks be?
A)37 m
B)30 m
C)46 m
D)34 m

Question

Quizplus · Accepted Answer

The work-energy principle states that the work done by friction is equal to the change in kinetic energy. The frictional force is the product of the coefficient of friction, the normal force (which is the weight of the car), and the distance (skid marks). Solving for distance gives 37 m.

A Driver in a 1000