yes.. if it matters for a real car then it does for a toy car.. gravity and momentum either way
It depends on the ramps slope. if it was straight down, the cars would fall down the ramp at the speed of gravity, which is 9.8 meters per second No. Gravity is NOT speed, it is acceleration. In the absence of air resistance, the car would accelerate at a speed of 9.8 ms-2
Lengthen the ramp, decrease the mass of the object, use a machine (e.g., a block and tackle) to pull the weight up the ramp, reduce the friction of the weight against the ramp, move the ramp further from the center of gravity of the earth, submerge the ramp in a liquid...tbere may be more ways but this should give you some ideas to consider.
a
yes
the heavier one will go faster because of newtons first law of motion.
Got to Eterna City and get a bike, use 2nd gear and race up the ramp.
Its in the Right ramp at the beggining of the race
Any don't matter
Yes, As a Boy scout we would weight our cars so that they would travel faster.
ramp
the cars fault-obviously
The horizontal and vertical components don't change. In fact, weight is completely vertical, and has no horizontal component at all, regardless of what the object happens to be sitting on. But the components parallel to the ramp and normal to the ramp depend on the slope of the ramp.