Question

The breaking stress for steel is 8 Ã 10^5 n/m^2. The density of steel is

Answer 1

Answer:

Explanation:

BS= F/A  

BS= Mg/A....where Density(D)=M/V  

                                  V=A×L so... mass= Density×A×L  

BS= rho*A*L*g/A  

To find length,  

L= BS / D*g  

L= 7.9× 10^8/ 7.9×10^3×9.8  

L= 0.102 × 10^5  

L= 10.2km