Homework Statement
The attachment shows the problem. The normal force at the top of the loop is 3 g's (as in g-force).
Homework Equations
PE = mgh
KE = .5mv2
Fc = \frac{mv2}{r}
PE + KE = PE' + KE'
v = \sqrt{2gh}
The Attempt at a Solution
The normal force would be: 30 * mass...