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Introductory Physics Homework Help
Torque on a Beam Due to Gravity
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[QUOTE="haruspex, post: 6285449, member: 334404"] What you calculated is for the case where the beam is weightless except for a 7.78kg mass at its free end. Clearly that will create more torque than a uniform beam would. In principle, one should consider the beam made of small elements of length dx, find the torque due to each, and integrate along the beam. But you can see what the answer will be just by taking these elements in pairs: a small element length dx at distance x from the fixed end, plus an element length dx at x from the free end will exert the same torque as two such elements in the middle. [/QUOTE]
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Torque on a Beam Due to Gravity
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