Fuel in other words Gas.
By providing friction against the ground
You lean forward.
To make a mouse trap car go forward and then backward, you can use a simple mechanism involving a switch or a lever attached to the axle. By adjusting the position of the lever, you can change the direction of the wheels. When the lever is flipped one way, the car moves forward; when flipped the other way, the car moves backward. Additionally, ensure that the mouse trap's energy is effectively transferred to the wheels for both directions.
truck will only go forward not in reverse does this mean the transmission is gone
Then remove the parking brake........
because the wheel make the mousetrap go forward but without the wheels the mousetrap stays in one place
It means to put your car into park mode; the brakes are on and the car won't go forward or back.
Back, then forward, then back. Often called whiplash.
Makes the car go forward!!
In a car go forward, then left , forward for 30miles right left right right left forward 10miles and you fall of a cliff
no it will cause u 2 go > slowly >=forward
Most likely your transmission needs replaced.