- #1
rcmango
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Homework Statement
A 70.0 kg skier rides a 2700 m long lift to the top of a mountain. The lift makes an angle of 14.3° with the horizontal. What is the change in the skier's gravitational potential energy?
Homework Equations
The Attempt at a Solution
mg cos(?) * (h0 - hf)
again, not sure why this formula doesnot work.