y2kplus wrote:
N-->牛頓?...(恕刪)
i don't know on other machine. however, on cars, horsepower is calculated from torque and rpm. In other word, horsepower is not measured, it is calculated.
0-100km/hr time is sometimes misleading. Many gasoline cars can reach 100 at 2nd gear. (which means only shift once) Most diesel cars need 3rd gear to reach 100km/hr. (shift twice)
currently, most conventional auto gear box shift gear at around 0.8-1 second. when people comparing the number, they need to take this into consideration.
