Determine all the reactions of the given structure. The surface against which the support Dis sitting is perpendicular to the element CD. Given: X 10 kN. 20 kN 6 kN/m 3 m X KN 3 m 4 m 4 m 4 m kN, and the reaction is (Click to select) v KN, and the reaction is (Click to select) v The magnitude of the reaction at A is Ax= The magnitude of the reaction at A is Ay= kN, and the reaction is (Click to select) v kN, and the reaction is (Click to select) v The magnitude of the reaction at Dis D The magnitude of the reaction at Dis Dy

Determine all the reactions of the given structure. The pin joint at D acts as a hinge. Given: X= 21 kN. B A X KN I D hinge 4@3m 12 m = H E F T 2 m = The magnitude of the reaction at A is RAX The magnitude of the reaction at A is RAY= The magnitude of the reaction at G is RGX= 18 KN 2 m kN, and the direction is (Click to select) kN, and the direction is (Click to select) kN, and the direction is (Click to select)

A long column such as the one depicted below loaded in compression initially along its axis has a tendency to rotate. Associated with that rotation the load P imparts tipping moments that are resisted by the springs. In the configuration below the springs are connected to the rod with a frictionless slider and remain perpendicular to the rod. The pivot at O is also frictionless, and the masses of the structure are negligible. P k L k (spring) Assume that the springs are at their happy (natural/unstretched) length when 0 = 0. (a) Let the spring constant k, the lengths b, L, and d be given parameters in the problem. Find the load load P as a function of the rotation angle 0 such that the system is in static equilibrium.

"r = k" is () order reaction equation. zero first second