Homework Help: physics

Posted by nicole on Tuesday, February 5, 2013 at 3:00am.

a 50 kg student who is late runs up two flights of stairs whose combined vertical height is 7.0 m in 10 s (and he then silently enters the classroom while the professor is writing on the chalkboard).Calculate the student's power output in doing work against gravity in a) watts, b) kilowatss, and c)horsepower

physics - drwls, Tuesday, February 5, 2013 at 7:38am
Power = M*g*H/time = 343 watts

You can surely convert that to kW

746 W = 1 hp. Do the conversion

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