Because the weight on the object is a force that is measured in newtons (N) and that is gravitational force x mass / mass x 10.
Basically, the weight is pushed down on the object which causes the object to move slightly faster than it normally would.
Lose weight.
Lose weight.
lose some weight
To make a co2 car go faster, make the body streamlined. Keep the weight down and make sure that the axles are smooth.
yes, the more weight added on to it will make it faster but one person or the lighter weight will get a head start.
Have a light weight body and make sure that all angles are curved so that it is aerodynamic. Spoilers only add drag, even if they look cool, and although less weight may make it go faster, it will also make it more fragile.
it is used to make things go faster
Faster than with no weight on it, yes. Faster than with an adult on it, no.
the lighter the weight the faster it goes so start eating some apples and eating less potato chips!
You can't make them go faster.
Making something streamlined reduces the air resistance on the object. So it won't have to work as a hard at high speeds and can therefore go faster.
Find things you enjoy doing. Time flies while you are having fun.