Question

A mass M is attached to an end of rod of length L.The mass goes around vertical circular path with the other end hinged at the center.What should be the minimum velocity of mass M at the bottom of circle so that mass completes a circle?

Answer 1

Answer on Question 48599, Physics, Mechanics — Kinematics — Dynamics A mass M is attached to an end of rod of length L.The mass goes around vertical circular path with the other end hinged at the center.What should be the minimum velocity of mass M at the bottom of circle so that mass completes a circle?

Solution

From energy conservation law:

$MV^{2}/2=MgL$

Minimum velocity must be

$V=\sqrt{2gL}$

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