- #1
Elmnt
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Homework Statement
A 50 kg skier starts from rest at a height of H = 25 m above the end of the ski-jump ramp. As the skier leaves the ramp, his velocity makes an angle of 28° with the horizontal. Neglect the effects of air resistance and assume the ramp is frictionless.
What is the maximum height h of his jump above the end of the ramp?
http://www.webassign.net/hrw/hrw7_8-39.gif
Homework Equations
I was using the conservation of energy equation:[tex]\textit{K_{i}+U_{i}+W = K_{f}+U_{f}}[/tex]
but I am getting stuck. I'm just not sure how to approach this problem. Using the initial kinetic energy as 0 and the initial potential energy as mass*gravity*height and that equals the kinetic energy plus the potential energy due to gravity at the height above the ramp. I don't know what the kinetic energy would be at this point so I cannot solve for the height. Am I looking at this correctly?