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If maximum and minimum tension in the st...

If maximum and minimum tension in the string whirling in a circle of radius 2.5 m are in the ratio 5 : 3 then its velocity is

A

`sqrt(98)m cdot s^(-1)`

B

`sqrt(7)m cdot s^(-1)`

C

`sqrt(490)m cdot s^(-1)`

D

`sqrt(4.9)m cdot s^(-1)`

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The correct Answer is:
A
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