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Well, firstly I converted the 50.0 hp into watts by multiplying it by 746 (because one hp equals 746 watts). I got 37300 watts. Then using the formula [tex]P=\frac{W}{\Delta t}}[/tex], I plug in 6.40 x 10If an automobile engine delivers 50.0 hp of power, how much time will it take for the engine to do 6.40 x 10^{5}J of work?

^{5}J as P(ower) and 6.40 x 10

^{5}as W(ork). When I calculated it, I get .058 seconds for t. However, the correct answer is 17.2 seconds. Can anybody tell me where I'm going wrong and waht I need to do?