Why does a car Rev at 9000 rpm?
Why does a car Rev at 9000 rpm? Power! As Fenske notes, horsepower is a function of torque times RPM, so the more revs you have, the more power you get. It's that simple. But of course, you should watch Fenske's video for an even more in-depth explanation. What's the speed of a car at 6000 rpm? RPM = 6000 transmission gear ratio R1 = 0.73 in high gear rear end ratio R2 = 3.62 loaded tire radius r = 10.9 inches The car's speed at 6000 RPM in high gear will be: (0.00595) * ( 6000 * 10.9) /...