A 945-kg car traveling rightward at 22.6 m/s slams on the brakes and skids to a stop (with locked wheels). If the coefficient of friction between tires and road is 0.972, determine the distance required to stop.

Question

anonymous · Answer

Why dont we include the braking force in the free body diagram?

anonymous · Answer

the braking force is applied only for some time before it becomes one of the internal forces, thus not applicable as an external force of the entire car system