A horizontal rod of length 1 m is rotated about a vertical axis passing through one of its ends. the number of revolutions per second at which the rod breaks is :

Q: A horizontal rod of length 1 m is rotated about a vertical axis passing through one of its ends. the number of revolutions per second at which the rod breaks is : ( Breaking stress of material of rod = 3 × 109 N/m2 and density of material of rod = 6000 kg/m3)

(a) 1000 rps

(b) 318.2 rps

(c) 159 rps

(d) 259 rps

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Ans: (c)