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Two particle each of mass M are fixed at...

Two particle each of mass M are fixed at positions (0, a) and `(0, -a)`. Another particle of mass `M//2` is thrown from origin along + z axis so that it is just able to reach a point `(0, 0, 2sqrt(3)a)`. Find the soeed with which it was projrcted.

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The correct Answer is:
`[2sqrt((GM)/(a)((sqrt(13-1)/(sqrt(13)))))]`
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