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A particle is rotated in a vertical circ...

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 is

A

`sqrt(gl)`

B

`sqrt(2gl)`

C

`sqrt(3gl)`

D

`sqrt(5gl)`

Text Solution

Verified by Experts

The correct Answer is:
C
`V_(min) = sqrt(3 gl)`.
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