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elsternj
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Homework Statement
A ski tow operates on a slope of angle 14.3 of length 350m . The rope moves at a speed of 12.1km/h and provides power for 49 riders at one time, with an average mass per rider of 75.0kg Estimate the power required. to operate the tow.
Homework Equations
W=mgh
P=W/T
x-x0=(V0x+Vx/2)t
The Attempt at a Solution
First I converted my speed to m/s
12.1km/h = 3.36m/s
Then I had to find the height of this ski lift. I figured the height would be the y component of the ski lift. 350Sin(14.3)=86.45
m = 75*49 = 3675
W=mgh
W=(3675)(9.8)(86.45)=3113496.75
Then I had to find the time.
x-x0=(V0x+Vx/2)t
350=(3.36/2)t
t = 208.3
P = 3113496.75 / 208.3 = 14947.18 (not the right answer)
Where did I go wrong?