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A heavy particle is suspended by a stirn...

A heavy particle is suspended by a stirng of length l. The particle is given a horizontal velocity `v_0`. The stirng becomes slack at some angle and the particle proceeds on a parabola.find the value of `v_0` if the prticle psses through the ponit of suspension

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The correct Answer is:
`[gl(2+sqrt(3))]^(1//2)`
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