In the figure shown, the heacvy ball of mass 2m rests on the horizontal surface and the lighter balls of mass m is dropped from

In the figure shown, the heacvy ball of mass 2m rests on the horizontal surface and the lighter balls of mass m is dropped from a height `hgt2l.` At the instant the string gets taut, the upward velocity of the heavy ball will be :

A. `2/3sqrt(gl)`
B. `4/3sqrt(gl)`
C. `1/3sqrt(gl)`
D. `1/2sqrt(gl)`

In the figure shown, the heacvy ball of mass 2m rests on the horizontal surface and the lighter balls of mass m is dropped from a height `hgt2l.` At t

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