When you step on the accelerator to increase the speed of your car, the force that accelerates the car is:
A)the force of your foot on the accelerator
B)the force of friction of the road on the tires
C)the force of the engine on the drive shaft
D)the normal force of the road on the tires
E)none of the above

Question

Quizplus · Accepted Answer

The force that actually accelerates the car is the force of friction of the road on the tires. This frictional force pushes the car forward as the tires rotate and push against the road surface.

When You Step on the Accelerator to Increase the Speed