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Calculate the speed of sound in a steel ...

Calculate the speed of sound in a steel rod whose Young's modulus `Y = 2 xx 10^(11) N m^(-2)` and `rho = 7800 kg m^(-3)`

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`F = eta A (dv)/(dx)`
In magnitude, `eta = F/A (dx)/(dv) = ((2.5N))/((2.5 xx 10^(-4)m^2)) ((0.25 xx 10^(-3) m))/((3 xx 10^(-2) ms^(-1))) = 0.083 xx 10^(3) Nm^(-2) s`
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