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Introductory Physics Homework Help
Horsepower engine is required?
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[QUOTE="pbumper1, post: 1906644, member: 147939"] [h2]Homework Statement [/h2] A 80kg skier grips a moving rope that is powered by an engine and is pulled at constant speed to the top of a 23*degrees hill. The skier is pulled a distance x = 250m along the incline and it takes 2.1 minutes to reach the top of the hill. If the coefficient of kinetic friction between the snow and skis is uk = 0.10, what horsepower engine is required if 30 such skiers (max) are on the rope at one time? [h2]Homework Equations[/h2] P= w/t=mgy/t [h2]The Attempt at a Solution[/h2] 80x9.8xsin23*=306 Fnuk=Fr 80x9.8x.1=78.4 306+78.4=390N 390x9.8x250/126s=773 W X30 =3.1x10^4hp [/QUOTE]
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Introductory Physics Homework Help
Horsepower engine is required?
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