A steel rod of length 1 m and radius 10 mm is stretched by a force 100 kN along its length. The stress produced in the rod is (YSteel=2×1011N m-2)

Question

A steel rod of length 1 m and radius 10 mm is stretched by a force 100 kN along its length. The stress produced in the rod is (YSteel=2×1011N m-2) (A) 3.18×106 N m-2 (B) 3.18×107 N m-2 (C) 3.18×108 N m-2 (D) 3.18×109 N m-2

Tardigrade Admin · Accepted Answer

Here, r=10 mm =10×10-3 m =10-2 m L=1 m, F=100 kN =100×103 N =105 N Stress produced in the rod is Stress =(F/A) =(F/π r2) =(100×103N/3.14×(10-2m)2) =3.18×108 N m-2

Q. A steel rod of length $1 m$ and radius $10 mm$ is stretched by a force $100 k N$ along its length. The stress produced in the rod is $(Y_{St ee l} = 2 \times 1 0^{11} N m^{- 2})$

$3.18 \times 1 0^{6} N$ $m^{- 2}$

$3.18 \times 1 0^{7} N$ $m^{- 2}$

$3.18 \times 1 0^{8} N$ $m^{- 2}$

$3.18 \times 1 0^{9} N$ $m^{- 2}$

Q. A steel rod of length 1m and radius 10mm is stretched by a force 100kN along its length. The stress produced in the rod is (YSteel​=2×1011Nm−2)

3.18×106N m−2

3.18×107N m−2

3.18×108N m−2

3.18×109N m−2

Here, r=10mm =10×10−3 m=10−2m L=1m, F=100kN =100×103N =105N Stress produced in the rod is Stress =AF​ =πr2F​ =3.14×(10−2m)2100×103N​ =3.18×108N m−2

Q. A steel rod of length $1 m$ and radius $10 mm$ is stretched by a force $100 k N$ along its length. The stress produced in the rod is $(Y_{St ee l} = 2 \times 1 0^{11} N m^{- 2})$

$3.18 \times 1 0^{6} N$ $m^{- 2}$

$3.18 \times 1 0^{7} N$ $m^{- 2}$

$3.18 \times 1 0^{8} N$ $m^{- 2}$

$3.18 \times 1 0^{9} N$ $m^{- 2}$