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Homework Statement
See attached diagram and statement of problem
Homework Equations
Conservation of momentum ...
mv = MV + mv/2
mv/2 = MV
V = mv/(2M)
centripetal force...centripetal force equals weight at top of circle.
MV^2/L = Mg
V^2 = Lg
V = (Lg)^.5
The Attempt at a Solution
Set V = V
mv/(2M) = (Lg)^.5
v = 2M(Lg)^.5/m
The answer is supposed to be v = 4M(Lg)^.5/m
I am off by a factor of 2 where did I go wrong???
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