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A ball of mass 0.25 kg attached to the e...

A ball of mass 0.25 kg attached to the end of a string of length 1.96 m is moving in a horizontal circle. The string will break, if the tension is more than 25 N. What is the maximum speed with which the ball can be moved ?

A

`3 m s^(-1)`.

B

`5 m s^(-1)`.

C

`9.8 m s^(-1)`.

D

`14 m s^(-1)`.

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