1.

A particle of mass m is revolving in a horizontal circle on a smooth table by an in extensible massless string if the initial speed of the particle is V_(0) and the particle has tangential acceleration of constant magnitude a, If V_(0) =0 then the distance covered by the stone till the string ruptures

Answer»

`(R)/(2a)`
`(gR)/(2a)`
`(G)/(2AR)`
`(2gR)/(a)`

Answer :B


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