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zheng89120
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Homework Statement
Two beads of mass m are initially at rest at the top of a frictionless hoop of mass M and radius R, which stands vertically on the ground. The beads are given tiny kicks, and they slide down the hoop, one to the rigth and one to the left. What is the largest value of m/M for which the hoop will never rise up off the ground?
Homework Equations
classical mechanics
The Attempt at a Solution
2mg cos^2(theta from top) = Mg ?
please help me get started, as this is an assignment question