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?

- Answer
2.43 meters per second

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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