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Question

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

14 m/s

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B

3 m/s

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C

3.92 m/s

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D

5 m/s

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Solution

The correct option is A

14 m/s


T=mv2r25=0.25×v21.96v=14m/s


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