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

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Q. A particles 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:

Q. 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{g l}

(b)

\sqrt{2 g l}

(c)

\sqrt{3 g l}

(d)

\sqrt{5 g l}

A particle of mass m is attached to a light string of length l, the other end of which is fixed. Initially the string is kept horizontal and the particle is given an upward velocity v. The particle is just able to complete a circle.

A particle is tied to one end of a light inextensible string and is moved in a vertical circle, the other end of the string is fixed at the centre. Then for a complete motion in a circle, which is correct.

(air resistance is negligible).

Q. A particle of mass

m

is attached to a light string of length

l

, the other end of which is fixed. Initially the string is kept horizontal and then particle is given an upward velocity

v

so that it is just able to complete the circle. Then:

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