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What will be the breaking strength of th...

What will be the breaking strength of the material if a horizontal rod of density `rho` and length unity, which is rotating about a vertical axis (passing through its cnetre), ruptures at 10 rps.

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50 `p pi^(2)`
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Knowledge Check

  • A horizontally oriented copper rod of length l=1m is rotated about a vertical axis passing through its middle. What is the number of r.p.s. at which this rod ruptures?

    A
    `1/pilsqrt((2sigma_m)/(p))`
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  • A rod AB of mass m and length l is rotating about a vertical axis as shown. It's moment of inertia about this axis is :

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    B
    `(ml^(2))/4`
    C
    `(ml^(2))/16`
    D
    `(ml^(2))/12`

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