A uniform steel bar of cross-sectional area A and length L is suspended, so that it hangs vertically. The stress at the middle point of the bar is (`r

Question

A uniform steel bar of cross-sectional area A and length L is suspended, so that it hangs vertically. The stress at the middle point of the bar is (`r

A uniform steel bar of cross-sectional area A and length L is suspended, so that it hangs vertically. The stress at the middle point of the bar is (`rho` is the density of stell)
A. `(L)/(2A) rho g`
B. `(L rho g)/(2)`
C. `(LA)/(rho g)`
D. `L rho g`

Monjur Alahi

6 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - b
At middle, T = weigth of half the length of steel bar
`= ((L)/(2)) A rho g`
`:.` Stress `= (T)/(A) = (L rho g)/(2)`

6 views Answered 2023-02-05 15:29