A car accelerates down a road. identify the best combination of forces exerted o

Question

A car accelerates down a road. identify the best combination of forces exerted on the car in the horizontal direction that explains the acceleration. (and explain why you chose this.)

A. The force exerted by the engine in the direction of motion and the kinetic friction force exerted by the road in the opposite direction

B. The static friction force exerted by the road in the direction of motion and the kinetic friction force exerted by the road in the opposite direction

C. The static friction force exerted by the road in the direction of motion and the friction force exerted by the air in the opposite direction

please explain your answer!

Explanation / Answer

A this is because kinetic friction will oppose the motion while the car is moving

the force for moving forward is provided by the engine

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