21. An external couple C2 is applied at Node 2 in the beam shown below. When EI = 105 N-r the rotations in radians at the three nodes are determined to be 9\ = —0.0S 02 = +0.05, 03 = -0.025

(a) Draw the shear force and bending moment diagrams for the entire beam.

(b) What is the magnitude of the couple C2 applied at Node 2?

(c) What is the support reaction Fyi at Node 1?

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