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spidey12
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Homework Statement
A skier starts from rest at the top of a hill. The skier coasts down the hill and up a second hill, as the drawing illustrates. The crest of the second hill is circular, with a radius of r = 47 m. Neglect friction and air resistance. What must be the height h of the first hill so that the skier just loses contact with the snow at the crest of the second hill?
http://img254.imageshack.us/img254/7408/0644bg0.gif
Homework Equations
1/2mvf2+mgHf=1/2mvo2+mgho
The Attempt at a Solution
All the masses cancel out. I got the equation down to two unknowns, one is the initial height and the other is the final velocity. Now I'm stumped.
This is the furthest I've gotten: 1/2vf2+g(47+h)=1/2vo2+g(47-h)
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