A bar having a cross-sectional area of 700 mm² is subjected

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A bar having a cross-sectional area of 700 mm² is subjected to axial loads at the positions indicated.
The value of stress in the segment QR is

1. 40MPa
2. 50 MPa
3. 70 MPa
4. 120 MPa

Correct Option: A

Stress =	Force
	Area

=	28 × 10³	N/m²
	700 × 10^-6

= 4 × 10^-5 N/m² = 40 MPa