The A-36 steel rod has a diameter of 50 mm and is lightly attached to the rigid supports - 4-79

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4–79. The A-36 steel rod has a diameter of 50 mm and is lightly attached to the rigid supports at A and B when T1=80°C. If the temperature becomes T2=20°C and an axial force of P=200 kN is applied to its center, determine the reactions at A and B.

All problems from Mechanics of Materials Eleventh Edition by Russell C. Hibbeler.
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Great illustration and explanation. Keep going.

bwilliams
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joychristopherj
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i´ve no idea why if i do the equation by hand it doesnt give 383 its 282, but i followed every step

nataliavillalobos