An elementary treatise on theoretical mechanics (1893)
Ziwet, Alexander, 1853-1928 · New York, London, Macmillan and Co. · leaf 101
at angles a, /3, and carries a weight W at thepoint D. The intersection (C) of these planes is horizontal and at rightangles to the vertical plane through AB. Find the inclination Q of K&to the horizon, and the pressures at k and B. (Fig. 41.) go STATICS. [151- As there are only three forces,… … B = sin(a + /3) W. Taking moments about D, we findwith AD = a, DB = b, ^ • a sin Z)^^ = ^ ■ ^ sin DBS, or ^a cos(a -\-d) = Bb cos(/3 — (9); to eliminate A and .5, divide by the first equation above : W4 Fig. 41. ^cos(« + e)_;,cos(/3-g) .sin a sin j8 solving for 0, we finally obtain n a cot a — b…
Mechanics, Analytic
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