1.

A cantilever beam of length 2 m with a square section of side length 0.1 m is loaded vertically at the free end. The vertical displacement at the free end is 5 mm. The beam is made of steel with Young’s modulus of 2.0 × 1011 N/m2. The maximum bending stress at the fixed end of the cantilever is _______

A. 20.0 MPa
B. 37.5 MPa
C. 60.0 MPa
D. 75.0 MPa
Answer» C. 60.0 MPa


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