Blocks C and D weighing 4,000 Newtons and 2,000 Newtons respectively rest on a horizontal beam A-B (5 meters long). They are 1 meter apart and block D rests at point B . If the reaction produced at B is twice as great as the reaction produced at A, how far from A will the weight of block C act?
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Use the definition of conservation of angular momentum to solve this problem. If the external torque is absent then the angular momentum of the system is conserved.
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4 meter.