PROBLEM 10.104 A vertical bar ADis attached to two springs of constant kand is in equilibrium in the position shown. Determine the range of values of the magnitude Pof two equal and opposite vertical forces Pand −Pfor which the equilibrium position is stable if (a) ,ABCD=(b) 2.AD=SOLUTION For both (a) and (b): Since Pand −Pare vertical, they form a couple of moment sinθ=+PMPlThe forces Fand −Fexerted by springsmust, therefore, also form a couple, with moment
This is the end of the preview. Sign up
access the rest of the document.