Motion in A Plane

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



1) 8 rad/sec
2) 4 rad/sec
3) 2 rad/sec
4) 1 rad/sec
Solution: Explanation: Explanation

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