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  1. ...mgh + 0.5*m*v^2 = 40*9.81*50*sin(20deg) + 0.5*40*12^2 Compressing the spring , E = 0.5*k*x^2, so x=sqrt(2*E/k) (answer a) For answer b, first I'd tell the IOC that the whole thing is unfair since a heavier athlete can equal the energy...

    1 Answers · Science & Mathematics · 22/06/2007

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