A stone tied to one end of a string is revolved in a horizontal circular path. The work done by ...

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A stone tied to one end of a string is revolved in a horizontal circular path. The work done by the force of tension \( (T) \) in the string is
a. \( T \times 2 \pi r \)
b. \( T \pi r^{2} \)
c. \( T \pi r \)
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