A uniform 30-lb beam, 10 feet long is carried by two mean A and B, one at each end of the beam. a) If A exerts a force of 25 lbs, where must a load of 50 lbs be placed on the beam? b) What force does B exert?
A uniform 30-lb beam, 10 feet long is carried by two mean A and B, one at each end of the beam. a) If A exerts a force of 25 lbs, where must a load of 50 lbs be placed on the beam? b) What force does B exert?
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A uniform 30-lb beam, 10 feet long is carried by two mean A and B, one at each end of the beam. a) If A exerts a force of 25 lbs, where must a load of 50 lbs be placed on the beam? b) What force does B exert?
A crane boom which weighs 200 lbs and which is 10 feet long is supported so that it makes an angle of 50° with the supporting wall and so that the rope makes an angle of 70° with the wall. If a load of 100 lbs is hung on the end of the boom, what tension occurs in the rope and what thrust does the support exert on the lower end of the boom?
PS: Include Given, Free-Body Diagrams, Formula
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