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Question Number 32713 by byaw last updated on 31/Mar/18

$$\mathrm{A}\mathrm{iniform}\mathrm{rod}\mathrm{of}\mathrm{length}2a\mathrm{and}\mathrm{weight}W$$$$\mathrm{is}\mathrm{smoothly}\mathrm{pivoted}\mathrm{to}\mathrm{a}\mathrm{fixed}\mathrm{point}$$$$\mathrm{at}A.\mathrm{A}\mathrm{load}\mathrm{of}\mathrm{weight}2W\mathrm{is}\mathrm{attached}$$$$\mathrm{to}\mathrm{the}\mathrm{end}B.\mathrm{The}\mathrm{rod}\mathrm{is}\mathrm{kept}\mathrm{horizontally}$$$$\mathrm{by}\mathrm{a}\mathrm{string}\mathrm{attached}\mathrm{to}\mathrm{the}\mathrm{midpoint}$$$$D\mathrm{of}\mathrm{the}\mathrm{rod}\mathrm{and}\mathrm{to}\mathrm{a}\mathrm{point}C\mathrm{vertically}$$$$\mathrm{above}A.$$$$\mathrm{If}\mathrm{the}\mathrm{length}\mathrm{of}\mathrm{the}\mathrm{string}\mathrm{is}2a,\mathrm{find},$$$$\mathrm{in}\mathrm{terms}\mathrm{of}W,\mathrm{the}\mathrm{tension}\mathrm{in}\mathrm{the}$$$$\mathrm{string}\mathrm{and}\mathrm{the}\mathrm{magnitude}\mathrm{of}\mathrm{the}$$$$\mathrm{reaction}\mathrm{at}\mathrm{the}\mathrm{pivot}.$$

Commented by byaw last updated on 02/Apr/18

$$pleasehelp$$

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