- #1
gr3g1
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Hey guys, my teacher asked us:
A 55kg woman runs up a flight of stairs having a rise of 4.5m in 3.5s. What average power must she supply?
I used the kinetic energy formula:
1/2(55)((4.5/3.5)^2) = J
Watts = J/3.5
Is that the right approach? Because i can't get the answer in the back of the book :(
A 55kg woman runs up a flight of stairs having a rise of 4.5m in 3.5s. What average power must she supply?
I used the kinetic energy formula:
1/2(55)((4.5/3.5)^2) = J
Watts = J/3.5
Is that the right approach? Because i can't get the answer in the back of the book :(