Horsepower The Imperial (British) unit for power is Horsepower. • the US still uses this unit • engines mainly 1 HP = 735.5 W The metric horsepower 1 hp = 735.5 watts ?t = 1 s ?h = 1 m m = 75 kg
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Horsepower and watts are units of measure of power. They are directly proportional such that 5 horsepower is equal to 3730 watts. How much power, in watts, is equal to 2 horsepower?
The kilogram force (kgf), defined as the force exerted by a kilogram mass in standard gravity, is commonly used in European practice. The metric horsepower (hpm) is defined as $1 \mathrm{hpm} \equiv 75 \mathrm{m} \cdot \mathrm{kgf} / \mathrm{s}$. Develop a conversion relating metric horsepower to U.S. horsepower. Relate the specific speed for a hydraulic turbine-calculated in units of rpm, metric horsepower, and meters-to the specific speed calculated in U.S. customary units.
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