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The greatest length of a steel wire that...

The greatest length of a steel wire that can hang without breaking is 10 km. I the breaking stress for steel is `8.25xx10^(8)N//m^(2)`. Then the density of the steel is `(g=10m//s^(2))`

A

`7200kg//m^(3)`

B

`8250kg//m^(3)`

C

`6200kg//m^(3)`

D

`5200kg//m^(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
Breaking stress `=Lrhog`
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