Convert 1 HP into watts by dimensional method.??

Question

Convert 1 HP into watts by dimensional method.??

I know that it is 745.7 watts but I wanna know how to convert, i.e whats the process.??

Answer 1

1 joul/sec =1 watt

James Watt defined hoursepower as 550ftxlb/sec (his definition ).1meter = 100/2.54x12=3.28 feet , 1 kg= 453.59237 grams.So 550(1/3.28)x0.45359237/sec)=76.06kg(mass...

then 76.06 x 9.81 =746.14 kg(force)x meter/sec

1 kg(force)x 1 meter = 1 newton and 1Nx 1meter = 1 joul is the defenition

Answer 2

you multiply 1 by 745.7

if you wanted to convert 21341hp into watts, you would multiply 21341 by 745.7

Pretty simple dude.

Dunno WTF "dimensional method" means.

Answer 3

Horsepower has the same unit as a watt anyway (depending on the definition).

Read for more info:

http://en.wikipedia.org/wiki/Horsepower#...

http://en.wikipedia.org/wiki/Horsepower