Solving for Ski Jumper Takeoff Speed: Using Energy and Motion Equations

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Confusedbiomedeng

Homework Statement


consider a ski jumper moving down a track to acquire sufficient speed to accomplish the ski jumping task. The length of the track is L=25m and the track makes an angle of 45° with the horizontal
if the skier starts at the top of the track with zero initial speed , determine the take off speed of the skier at the bottom of the track using
i) the work-energy theorem
ii) the conservation of energy principle
iii) the equation of motion along with kinematic relationships
assume that the effects of friction and air resistance are negligible

i have no idea how to even start this problem so any help would be greatly appreciated
 
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Confusedbiomedeng said:
i have no idea how to even start this problem
Well, you could list a few relevant equations -- as is asked by one of the template parts you accidentally :rolleyes: erased. And for us to be allowed to help you, an attempt from your side is required by the PF guidelines (part 3 of the template parts you accidentally :rolleyes: erased)

However, :smile:

what do your notes (or textbook) have to say on the work energy theorem ?
what kind of energy is converted in what kind of energy if you start high up with speed 0 and leave with a lot of speed at the bottom ?
what equation is meant with the equation of motion ?