Find the greatest length of the wire made of material of breaking stress 8 xx 10^8Nm^(-2) and density 8xx10^3 kgm^(-3)that can be suspended from a rigid support without breaking.

Find the greatest length of the wire made of material of breaking stre

1.	Find the greatest length of the wire made of material of breaking stress 8 xx 10^8Nm^(-2) and density 8xx10^3 kgm^(-3)that can be suspended from a rigid support without breaking.
Answer» Solution :Greatest LENGTH of the wire without breaking. ` L = ("Braking Stress ")/(RHO g)` Here, breaking stress `= 8 xx 10^(8)Nm^(-2)`, `rho = 8 xx 10^(3)kgm^(-3), g= 10ms^(-2).` `L= (8 xx 10^(8))/(8 xx 10^(3) xx 10)=1 xx 10^(4)m=10km`