The other theory I had which contradicts my first one is that the weight of the car is apart of the unbalanced force which causes its acceleration down the track (Newtons second law of motion)
F(unbalanced)=ma
a=F/m
As the force increases for a constant mass, the acceleration increases...
I conducted an experiment to investigate whether the mass of an object will affect the object speed at the bottom of a slope with a constant gradient. The experiment showed that as the mass of the object (car) increases, the speed of the car at the bottom of the slope increases.
I still do not...