So my class is doin' this little competition on a car powered by chemicals (In this case vinegar and baking soda). How do i make the car moved a precise length of 9 to 10 meters? Meaning that i should have the right amount of baking soda and vinegar to mix for the car to push forward and move a distance of 9 to 10 meters. Please! i need help! ThankYou so Much.