Two particles of masses m and 2m are att...

Two particles of masses m and 2m are attached to the massless rod of length 2l as shown in figure. The rod is hinged at its midpoint O and is free to rotate in vertical plane about hinge. The minimum speed v at the given instant so that it can complete the circle.

`sqrt(gl)`

`sqrt(4gl)`

`sqrt(5gl)`

`sqrt((4gl)/(3))`

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