Key Points
But if your car's design is suboptimal, you won't be taking home the bragging rights...
The frictional force that drives the car ahead depends on the specific materials in contact (captured by a friction coefficient, ) and the normal force...
Since this is the only force in the horizontal direction, Newton's second law says it must equal the product of the car's mass (m) and its acceleration (a)...
I lowered the power of the Porsche a bit in my model because not all of those 379 horses go into the kinetic energy of the carit's not a perfectly efficient system..
Even though there's an extra downward pushing force (Ffan), the car stays on the ground and still has a zero acceleration in the vertical direction..
