2006-08-30 01:15:38 · 7 answers · asked by Anonymous in Cars & Transportation ➔ Other - Cars & Transportation
From Wikipedia:
There have been many definitions for the term over the years since James Watt first coined the term in 1782. The following metrics have been widely used:
* Mechanical horsepower — 0.74569987158227022 kW (33,000 ft·lbf per minute)
* Metric horsepower — 0.73549875 kW
* Electrical horsepower — 0.746 kW
* Boiler horsepower — 9.8095 kW
2006-08-30 01:18:17 · answer #1 · answered by Christopher C 3 · 0⤊ 0⤋
The memory aid states that 1 hp = ½ Columbus or 746 W.
The horsepower (hp) is the name of several non-metric units of power. In scientific discourse the term "horsepower" is rarely used because of the various definitions and the existence of an SI unit for power, the watt (W). However, the idea of horsepower persists as a legacy term in many languages, particularly in the automotive industry for listing the maximum rate of power application of internal-combustion engines.
There are two important factors to consider when evaluating a "horsepower" figure:
* Various definitions for the unit itself
* Various standards for measuring the value
These factors can be combined in unexpected ways — the true power output for an engine rated at "100 horsepower" might vary significantly from a reader's expectations. For this reason, various groups have attempted to standardize both the definition and measurement system, often leading to even more confusion. Although the SI watt is not subject to varying definitions, it can still vary based on the measurement conditions.
2006-08-30 01:23:51 · answer #2 · answered by afewgoodgirls 2 · 0⤊ 0⤋
The amount of power needed to lift a 550 lb weight straight up at a steady speed of 1 foot per second.
2006-08-30 01:27:34 · answer #3 · answered by Mad Scientist Matt 5 · 0⤊ 0⤋
1 horse.... it does exactly what it says on the tin... durr!
ah, I see - you were serious. In that case I don't know. But I hope you had as much of a laugh as I did..
peace
2006-08-30 01:17:52 · answer #4 · answered by Mr X 2 · 0⤊ 0⤋
1 horsepower (HP) = 745.7 watts (0.7457 kilowatts)
r u engineering student?
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2006-08-30 01:34:58 · answer #5 · answered by andrew007 2 · 0⤊ 0⤋
746 watts?
2006-08-30 01:18:05 · answer #6 · answered by Anonymous · 1⤊ 0⤋
http://www.web-cars.com/math/horsepower.html
2006-08-30 04:04:06 · answer #7 · answered by Anonymous · 0⤊ 0⤋