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

A heavy particle is tied to the end A of a string of the length`1.6` m. Its other end O is fixed. It revolves as a conical pendulum with the string making `60^(@)` with the horizontal. Then,

A

its period of revolution is `(2sqrt(2)pi)/5` sec

B

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

C

the velocity of the particle `=sqrt(24)m//s`

D

the centripetal acceleration of the particle is `10sqrt(3)m//s^(2)`

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