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Mathematics 22 Online
OpenStudy (anonymous):

its statics a ruler of two ends "a" and "b" its supported with 2 supporters at "C" and "d" ;as C,d belong to the ab line segment a weight "w" is susbended from "m" as "M" between "C" and"D" if a weight of 5kg is susbended from "a" the ruler is about to rotate and if a weight of 7 kg susbended from "b" the ruler is about to rotate ; find the value of "w" and the length of "am"

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