(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

if a skier goes down a hill that is 20m high and 70 m long perpendicular to the height... and she weighs 50kg and her intial veloctiy is 5 m/s. how fast is she going at the bottom if the force of gravity up the hill is 40N??

I just dont get it!!!

PLease help me

2. Relevant equations

total energy= kinetic energy + gravitational energy

work = Fd

3. The attempt at a solution

Et= .5x50x(5x5)+ 50 x 9.8 x20

= 10425

and i dont know where to go from here please help me!!!!

i have a test tomorrow and i dont understand

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# Homework Help: Skier problem

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