I'm still not clear on why I didn't need to use the gravitational constant? i.e. a 1500kg car should have a mass of 1500/9.8 = 153kg. Or is the mass actually 1500kg and the weight is 1500*9.8 Fg. I guess I am also confused between weight and mass.
Okay... so it was almost working. I think I was converting weight to mass when I should have left it alone as kg.
Now I need to figure out and subtract aerodynamic drag etc.
Maybe I should go dig in the basement for an old physics textbook.
Thanks
I am designing a dynamometer app for a phone and am having trouble with the math.
The goal is to measure acceleration with the built-in accelerometer then calculate velocity, position, horsepower, etc. It's mostly working but I think I am messing up the units. I get plausible values for...