One end of a uniform rod of mass m 1 and cross-sectional area A is hung from a ceiling…
Physics · JEE Main · NTA Exams — Properties of Solids and Liquids
One end of a uniform rod of mass m1 and cross-sectional area A is hung from a ceiling. The other end of the bar is supporting mass m2. The stress at the midpoint is
- \(\frac{\mathrm{g}\left(\mathrm{~m}_{2}+2 \mathrm{~m}_{1}\right)}{2 \mathrm{~A}}\)
- \(\frac{\mathrm{g}\left(\mathrm{~m}_{2}+\mathrm{m}_{1}\right)}{2 \mathrm{~A}}\)
- \(\frac{\mathrm{g}\left(2 \mathrm{~m}_{2}+\mathrm{m}_{1}\right)}{2 \mathrm{~A}}\)
- \(\frac{\mathrm{g}\left(\mathrm{~m}_{2}+\mathrm{m}_{1}\right)}{3 \mathrm{~A}}\)
Answer
(C) g (2 ~m _ 2 + m _ 1 ) 2 ~A
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