- #1
Cleo James
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Homework Statement
part(b) and (c)
Homework Equations
Conservation of momentum
Conservation of angular momentum
Conservation of mechanical energy
The Attempt at a Solution
So first I thought that I could do it by just using the conservation of mechanical energy, but then I realized that since the lower part of the hoop hits the platform, the energy can't be conserved (there's energy lost):
1/2 mv^2 + 1/2 Iw^2 = mgh + Energy lost
mv^2 = mgh + Energy lost
I think that part (b) and (c) is very related, once we know the energy lost, we can determine the v needed, however I don't really understand how to find its value. Any suggestion ??