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Question Number 57839 by pete last updated on 13/Apr/19

$$\mathrm{A}\mathrm{uniform}\mathrm{rod}\mathrm{AB},3\mathrm{m}\mathrm{long}\mathrm{and}\mathrm{weght}$$$$120\mathrm{N},\mathrm{rests}\mathrm{in}\mathrm{equilibrium}\mathrm{with}\mathrm{end}\mathrm{A}$$$$\mathrm{on}\mathrm{a}\mathrm{rough}\mathrm{horizontal}\mathrm{table}\mathrm{and}\mathrm{supported}$$$$\mathrm{by}\mathrm{a}\mathrm{force}\mathrm{P}\mathrm{applied}\mathrm{at}\mathrm{its}\mathrm{end}\mathrm{B}\mathrm{at}\mathrm{right}$$$$\mathrm{angles}\mathrm{to}\mathrm{the}\mathrm{rod}.\mathrm{The}\mathrm{rod}\mathrm{makes}\mathrm{an}\mathrm{angle}$$$$\mathrm{of}3\mathrm{o}°\mathrm{with}\mathrm{the}\mathrm{table}.\mathrm{Find}\mathrm{the}\mathrm{force}\mathrm{P},$$$$\mathrm{and}\mathrm{the}\mathrm{reaction}\mathrm{at}\mathrm{the}\mathrm{floor}.$$

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