A circular tube of mass M placed veticll...

A circular tube of mass `M` placed veticlly on a horizontal surface as shown in the figure. Two small spheres, each of mass `m` , just fit in the tube, are released from the top. If `theta` gives the angle between radius vector of eirther ball with the vertical, obtain the value of the ratio `M//m` if the tube breacks its contact with ground when `theta=60^(@)` . Neglect any friction.

`2'`

`(1)/(2)`

`3'`

`(1)/(3)`

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