\"When you step on the accelerator to increase the speed ofyour car, the force t

Question

"When you step on the accelerator to increase the speed ofyour 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 "When you step on the accelerator to increase the speed ofyour 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

Explanation / Answer

B) the force offriction of the road on the tires. . The tires pull on the road with a friction force; the roadapplies an equal and opposite force (i.e. in the forward direction)to the tires. This is the force that pushes the car forward. Thisis exactly the same idea as the force that pulls you up when youclimb a rope: you pull down on the rope, and the rope (equal andopposite) pulls up on you.

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