Analytical mechanics for students of physics and engineering (1913)
Dadourian, Haroutune Mugurditch, 1878- · New York, D. Van Nostrand company · leaf 59
make with the horizon without slipping. There are three forces acting on the ladder, i.e., its own weight W andthe two reactions Ri and R2. Replacing Ri and R2 by their componentsand writing the equations of equilibrium we obtainSZ ^ Fi - iVa = 0,27 s iVi + F2 - TT = 0, XGo = F2I cos a + N2I sin a… … Fig. 34. Discussion. — The last expression gives the value of a. for a givenvalue of fj,. When fi = 1, a = 0, therefore in this case the ladder wiU be in equilibrium at any angle between 0 and - with the ground. £1 Evidently this is true for any value of /i greater than unity. 3. Find the smallest…
Mechanics, Analytic
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