The figure shows a rigid bar A B C D pinned at A and supported at B and C by vertical rods labeled 1 and 2 respectively. The separation between A and B is 380 millimeters. The separation between B and C is 380 millimeters and the separation between C and D is 760 millimeters. The load at D is P which equals 36 kilo newtons directed vertically downwards.
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