A rigid platform in Figure MEC - 208 has negligible mass carries a center load P and rests on two aluminum bars, each 250 mm long. The center bar is steel and is 249.9 mmn long Each aluminum bar has an area of 1,200 mm and E = 70 GPa. The steel bar has an area of 2,400 %3D mm2 and E = 200 GPa. aluminum steel aluminum Find the value of P when the platform just just the steel bar Select one: O a 91.5 kN O b 67.2 kN O c. 724 kN

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A rigid platform in Figure MEC-208 has negligible mass carries a center load P and rests on
two aluminum bars, each 250 mm long. The center bar is steel and is 249.9 mmn long. Each
aluminum bar has an area of 1,200 mm² and E = 70 GPa. The steel bar has an area of 2,400
%3D
mm2 and E = 200 GPa.
%3D
aluminum
steel
aluminum
Find the value of P when the platform just just the steel bar.
Select one:
O a 91.5 kN
Ob 67 2 kN
O c. 72.4 kN
Transcribed Image Text:A rigid platform in Figure MEC-208 has negligible mass carries a center load P and rests on two aluminum bars, each 250 mm long. The center bar is steel and is 249.9 mmn long. Each aluminum bar has an area of 1,200 mm² and E = 70 GPa. The steel bar has an area of 2,400 %3D mm2 and E = 200 GPa. %3D aluminum steel aluminum Find the value of P when the platform just just the steel bar. Select one: O a 91.5 kN Ob 67 2 kN O c. 72.4 kN
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