Hi there! This is my first post, and I discovered this forum after I saw the tv show "Mythbusters", after searching about a physics forum to ask a question: In one particular episode, they made a Dodge Viper and a toy car descend a road (the toy car was in a toy ramp) with about a 30º angle, only with the power of gravity. Which reached the bottom first? Well, from their experiment, the Viper reached bottom (a 400 meter descent) about 4 seconds faster than the toy car. Acording to the laws of physics, in a perfect environment (no friction and wind resistance) both cars would reach the bottom at the same time, at about 0,2 ms-1 acceleration. But my question is, why does the car reaches the bottom first? I dont know much about wind resistance (I tried to use a force with a value deducted from the volumic mass of the air to resist the movement of both cars, but I dont know if this is the right way to do it) and friction (supposing they both have friction, I think maybe the acceleration values should be smaller but more or less equal to both cars). Is this a simple question, solved by equations and math (I love aplying physics and maths to real life situations ) or there are a lot of variables that influence this velocity variation (aerodinamics, the tipe of wheels, etc). I hope I'm not asking a stupid question!