1.

A particle is rotated in a vertical circle by connecting it to a string of length `l` and keeping the other end of the string fixed. The minimum speed of the particle when the string is horizontal for which the particle will complete the circle isA. `sqrt(gl)`B. `sqrt(2gl)`C. `sqrt(3gl)`D. `sqrt(5gl)`

Answer» Correct Answer - C
`V_(min) = sqrt(3 gl)`.


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