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Cate
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Homework Statement
O.k, i'll do my best to explain the problem as I but a picture would probabley be helpful. Basically there's an object of mass m travlleing down an incline. Near the end of the incline it does a loop. The question asks to calculate the normal force(Fn) as a function of ө for 0 ≤ ө ≤ 180 (assume cart is from height h) hint: your answer will depend on m, g, h, r and ө. Check that equation has proper behavior ө= 0 degrees, 90 degrees and 180 degrees.
Homework Equations
U= mgh
k=1/2mv^2
The Attempt at a Solution
i understand what's going on it's just putting it into an equation that I find difficult. I am assuming that ө equals zero at the appex before the ascent into the loop. Also, kinetic energy increase as ө increase i think. I'm just no sure if I should do three separate equations or one if just one then how can it represent all three angles? Any help will be greatly appreciated!