Posted by: thinfourth2
horsepower ? - 01/04/2004 16:38
Seeing that a horse is pretty heavy and can move quite quickly how much horsepower does a hosre develop as it must be more then 1hp
Seeing that a horse is pretty heavy and can move quite quickly how much horsepower does a hosre develop as it must be more then 1hpBut the heavy ones aren't quick, and the quick ones aren't heavy. James Watt did the original experiments, and while I can believe horses are a bit fitter these days what with growth hormones and so on, the original calibration was against one genuine horse. He harnessed it to a rope, passed the rope over a pulley down into a shaft, tied weights to the end of the rope, and timed how quickly the horse could lift them: 330 foot-pounds per second is what he came up with (i.e. 10lb at 33ft/sec, or 33lb at 10ft/sec). In modern units it's about 750 newton-metres per second, that's to say 750W.
what about a pony?Twenty-five pounds. Obviously.
I am pretty sure that it was 550 foot-pounds per second, not 330.Of course you're right, I had threes in my head because it's 33000 foot-pounds per minute. That sounds better.
Seeing that a horse is pretty heavy and can move quite quickly how much horsepower does a hosre develop as it must be more then 1hp
It's all torque anyway
Stuff like it takes 80 calories per gram to change ...Yeah, but are those calories or Calories?