1.

A body of mass 10 kg is attached to a wire of radius 3 cm. Its breaking stress is\[4.8\times {{10}^{7}}N{{m}^{-2}}\], the area of cross-section of the wire is\[{{10}^{-6}}{{m}^{2}}\] . What is the maximum angular velocity with which it can be rotated in the horizontal circle?

A. \[1\,rad{{\sec }^{-1}}\]
B. \[2\,rad{{\sec }^{-1}}\]
C. \[4\,rad{{\sec }^{-1}}\]
D. \[8\,rad{{\sec }^{-1}}\]
Answer» D. \[8\,rad{{\sec }^{-1}}\]


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