Here you'll calculate the power output of a car in two ways:

Last updated: 7/10/2022

Here you'll calculate the power output of a car in two ways: (1) using the fact that the car has a 250-horse- power engine and (2) krowing that the car gets 20 miles per gallon when traveling at 60 miles per hour. (a) Convert the horsepower rating into watts and (b) calculate the gasoline consumption rate and, using Table 3.3's energy equivalent for gasoline, convert the result to a power in watts. Comparison of your results shows that a car doesn't always achieve its engine's rated horsepower.