A horizontally oriented copper rod of length / is rotating about a vertical axis passing through its middle. Calculate the rotation frequency at which the rod ruptures. Breaking or rupture strength of copper is sigma and density of copper is rho.

A horizontally oriented copper rod of length / is rotating about a ver

1.	A horizontally oriented copper rod of length / is rotating about a vertical axis passing through its middle. Calculate the rotation frequency at which the rod ruptures. Breaking or rupture strength of copper is sigma and density of copper is rho.
Answer» Answer :`omega=SQRT((5 sigma)/(rho l^(2)))(or)n=(1)/(2PI) sqrt((8 sigma)/(rho l^(2)))`