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A heavy particle is tied ot the end A of...

A heavy particle is tied ot the end A of a string of length `1.6m`. Its other end `O` is fixed. It revolves as a conical pendulum with the string making `60^(@)` with the vertical. Then `(g=10m//s^(2))`

A

its period of revolution is `(4pi)/(7)` sec.

B

the tension in the string is double the weight of the particle

C

the velocity of the particle `2.8sqrt3 m//s`

D

the centripetal acceleration of the particle is `9.8 sqrt3 m//s^(2)`.

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A, B, C, D
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