Homework Help: physics

Posted by Ahmad Alotaibi on Tuesday, November 20, 2012 at 2:57pm.

Jessie exerted a force of 400N to move a box across the floor to a distance of5m in 4sec. What is his power is kilowatts? Megawatts? Horsepower?

physics - Henry, Thursday, November 22, 2012 at 11:59am
P = F * d/t = 400 * 5/4 = 500 Watts =
0.500 Kw = 5*10^-4 Megawatts.
physics - Henry, Thursday, November 22, 2012 at 12:02pm
Hp = 500Watts/746Watts/Hp = 0.67.

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