11. The simple beam carries a concentrated load P = 20 KN. Dimension a and b are 2.5 m and 1.5 m, respectively. What is the required section modulus of the beam, in mm³, if the working bending stress is 1 MPa? P to

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11. The simple beam carries a concentrated load P = 20 kN. Dimension a and b are 2.5 m and 1.5 m,
respectively. What is the required section modulus of the beam, in mm³, if the working bending stress is 120
MPa?
a.
b.
137 x 10³
157 x 10³
C.
177 x 10³
d. 197 x 10³
Transcribed Image Text:11. The simple beam carries a concentrated load P = 20 kN. Dimension a and b are 2.5 m and 1.5 m, respectively. What is the required section modulus of the beam, in mm³, if the working bending stress is 120 MPa? a. b. 137 x 10³ 157 x 10³ C. 177 x 10³ d. 197 x 10³
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