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A stone of mass 250 gram , attached ...

A stone of mass 250 gram , attached at the end of a string of length 1.25 m is whirled in a horizontal circle at a speed of 5 m/s . What is the tension in the string ?

A

2.5 N

B

5 N

C

6 N

D

8 N

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The correct Answer is:
B
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