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Beam Equilibrium

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The horizontal beam shown in the diagram is pin supported at A and roller supported at D. The beam carries a vertical point load as shown at B and an inclined point load as shown at C.

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l1 = 3m, l2 = 7m, l3 = 1.2m,  θ=42\u25e6, F1 = 12kN, F2 = 15kN,

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The uniform beam is made from steel (ρ = 7840 kg/m³) and is of a rectangular cross-section (500 mm x 70 mm). 

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Calculate the following:

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i. The weight of the beam.

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[2 Marks]

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ii. The Horizontal Position of the Centre of Gravity where the weight acts.

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[2 Marks]

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iii. The vertical and horizontal components of the force C.

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[3 Marks]

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iv. The vertical reaction force acting at D.

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[3 Marks]

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vi. The vertical reaction force acting at A.

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[3 Marks]

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vii. The horizontal reaction force acting at A.

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[2 Marks]

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Ensure you include diagrams in your workings.

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[5 Marks]

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