Question

A car accelerates on a horizontal road due to the force exerted by (A) the engine of the car. (B) the driver of the car (C) the earth. (D) the road

Answer 1

A ) engine of the car

Answer 2

The correct answer is (d) the road. The engine combusts the fuel and exerts force on the car. The car in turn exerts this force towards the earth.
But, this does not mean that the car moves forward. The car moves forward when the road exerts an equal force on the car. This pudhes the car forward.