How does Kilowatt influence car speed?

(2011-02-22 15:25:16) 1. Michael Vosloo Says: It depends on the power rating of the car to accelerate. Suppose that a 40-horsepower engine could accelerate the car from 0 mi/hr to 60 mi/hr in 16 seconds. If this were the case, then a car with four times the horsepower could do the same amount of work in one-fourth the time. That is, a 160-horsepower engine could accelerate the same car from 0 mi/hr to 60 mi/hr in 4 seconds. The point is that for the same amount of work, power and time are inversely proportional. The power equation suggests that a more powerful engine can do the same amount of work in less time. Tag: How does Kilowatt influence car speed?