Tim,
Power is the work done per unit of time. 1hp=550ft-lbs/sec so the power to lift 180 lbs 1 foot off the ground in one second=180/550=.327 hp. To lift it 5 ft in say 1 min (60 sec) would be 5*180/(60*550)=.0272hp
Hope this helps
Jim
Jim S.
tutor
Tim,
Newton is the unit of force in the SI(metric) units. Pound is the equivalent measure of force in the so called English system of measurement.
Power is the work done per unit of time: in the metric system work is measured in newton*meters so power is measured in newton-meters/second which is called a watt. In the english system power is measured in foot-pounds/second and 550 of these
is called a horsepower.
I think your question should be "what would be the conversion from .327hp to watts be"? and the answer
is 243.8 watts One hp is equivalent to 745.7 watts. You can derive this by converting feet to meteres, pounds to newtons. (A newton is a kg-m/sec2 a pound is a slug-ft/sec2)
Jim
Report
01/03/15
Tim A.
01/02/15