Calculating Energy and Height of Acrobat on Skis

AI Thread Summary
To calculate the acrobat's speed when leaving the track, use the conservation of energy principle, equating potential energy at the starting height to kinetic energy at the exit point. The initial height is 50.0 m, and the final height after leaving the track is 10.0 m, allowing for the calculation of speed using the formula for kinetic energy. The maximum height attained after leaving the track can be determined by analyzing the vertical motion and applying energy conservation again, considering the initial kinetic energy at the exit point. The discussion highlights confusion regarding the application of physics concepts for quiz preparation. Understanding these principles is essential for solving similar problems in physics.
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Homework Statement


An acrobat on skis starts from rest 50.0 m above the ground on a frictionless track and flies off the track at a 45.0° angle above the horizontal and at a height of 10.0 m. Disregard air resistance.

a. What is the skier’s speed when leaving the
track?

b. What is the maximum height attained?


Homework Equations


kinetic energy=1/2 mass*speed^2
potential energy

The Attempt at a Solution


somehow find the kinetic energy of the two height and change it to potential and then with the 45 angle
really need to know how to do it for a quiz
 
Physics news on Phys.org
you got to try it at least man.
 
unless of course they let you using physics forums during your tests. do they do that nowadays?
 
ok i did try i still don't get it
 
never mind solve it
 

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