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4) Select the lightest W410-shaped section that can safely support the load. The beam is made of steel having an allowable normal stress of

4) Select the lightest W410-shaped section that can safely support the load. The beam is made of steel having an allowable normal stress of allow = 150 MPa and an allowable shear stress of Tallow = 75 MPA. -2 m- -1m- 150 kN

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