UTF-8 U+6211 U+662F wrote: Adi1008 wrote:
IvanGe wrote:I'm just going to ask a question because no one's verified the answer.
With what constant velocity can a 4.00 hp motor raise a mass of 125 kg?
Can you explain this one
So the first thing to understand is that hp is a unit of power, just not an SI unit. 1 hp = 745.7 W.
From here, we can use this relationship P = Fv to solve the equation.
The reason this works is that power is really a unit of energy per time. Energy, meanwhile, is a unit of force over a distance. So, power is a unit of force over a distance per time; the distance per time corresponds to velocity.
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