Can a toy car be moved using only 1 liter of water without wasting any?

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A toy car weighing 40 grams can be moved using 1 liter of water without waste by employing a gravity-fed water wheel mechanism. This setup allows the water to turn the wheel, which winds up a string attached to the car, effectively pulling it along. The water can be collected in a tank after powering the wheel, ensuring no water is wasted. Additional considerations include the distance and speed at which the car should move, as well as whether the water should directly power the car or simply assist in its movement. This method provides an efficient solution to the challenge presented.
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can anyone give me an idea of how can i move a toy car(40 grams) by using only 1 liter water such that even the water being used should not be wasted ,please suggest
 
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Is there more to this question? Such as distance required for it to move? Speed it should move at? Does the water have to power the car (turn a wheel to push/pull it) or can it simply push it along in a flow of water?

The simple answer is to use a gravity fed water water wheel, which would wind up a string attached to the front of the car to pull it along. You could collect the water below the water wheel in a tank.
 

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