"Not only moves the vehicle but also turns the wheels"?????
Just how would you move the vehicle without turning the wheels?
It doesn't matter if the wheels are connected via a driveshaft, or pavement.
The engine still has to turn ALL the wheels to move the car.
Mike
>Work transmitted through the drive wheels creates motion. The drive
>wheels have to be turned for the motion to take place, therefore the
>engine not only moves the vehicle but also turns the wheels. This is
>where the rotational mass becomes an issue. Free wheels are not directly
>turned by the engine,
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