A bob of mass 10 kg is attached to a wire 0.3 m long. Its breaking stress is  $4.8\mathbf{\times }{10}^{\mathbf{7}} \mathrm{N}/{\mathrm{m}}^{\mathbf{2}}$ . The area of cross-section of the wire is ${10}^{\mathbf{-}\mathbf{6}} {\mathrm{m}}^{\mathbf{2}}$ . What is the maximum angular velocity with which it can be rotated in a horizontal circle?

 

• A

  8 rad/s

• B

  4 rad/s

• C

  2 rad/s

• D

  1 rad/s