6. The concept of Horsepower was first defined by James Watt so he could compare steam engines to horses.
Watt defined horsepower by determining that the average horse could do about 45,000 J of work in one
minute. This is equivalent to a horse pulling 150 kg of coal a distance of 30 m in one minute. The unit HP
stuck and today it is used to describe everything from chain saws to racecars. The average car produces
about 150 HP, or 112,000 W. If 1 HP=745 W, determine how much horsepower you produced when doing
pushups. SHOW YOUR WORK!
