(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

There are two beads at the top of a hoop that is tied by a string. The beads start moving downward on the hoop on each side. M is the hoop's mass and m represents each bead's mass.

What is that mass ratio that will cause the hoop to elevate.

2. Relevant equations

T>= (M +2m)g

3. The attempt at a solution

I tried to go about this question but I couldn't finish the equations.

I know that the momentum on the x axis isn't relevant since the beads cancel each other out.

I'm not sure how to use the hoop as a constraint. I can find the difference in potential energy but I can't seem to connect it to the force - only to the momentum.

I would really appreciate the help.

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# Beads on a hoop that cause elevation

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