A 5-m-long simply supported timber beam carries two concentrated loads as shown. If L = 6 kN and M = 54 kN, determine the magnitude of the vertical force acting at support D. 2 m 42.9 KN O 63.4 KN O 45.6 KN O 53.5 KN 33.6 kN B 2m M 1m -0.5 m D
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