A stone of mass 5 kg is attached to a string of 10 m length and is whirled in a horizontal circle. The string can withstand a maximum tension of 160 N. The maximum velocity of revolution that can be given to the stone without breaking the string is

20 m/s

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19.4 m/s

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17.88 m/s

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16 m/s

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Solution

The correct option is C
17.88 m/s

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