2/10 Determine the n- and t-components of the force F which is exerted by the rod AB on the crank OA. Evaluate your general expression for F = 100 N and (a) 0 = 30°, ß = 10° and (b) 0 = 15°, ß = 25°. %3D F B y A А – x

Determine the magnitude and direction of the resultant for system of forces shown in the figure. Take F1 = 99.6 N, F2 = 43.7 N, F3 = 84.2 N, F4 = 66.0 N, F5 = 88.6 N, α = 29.8°, β = 50.2°, and γ = 55.1°.    Sum of all horizontal force components, ΣH (N) = Sum of all Vertical force components, ΣV (N) =  The resultant force, R (N) = The direction of the resultant force, θ (Degree) =

If the resultant of the forces shown passes through point A, determine the magnitude of the unknown pulley tension T2. The pulley is welded to the frame and is therefore not free to rotate. 1.3 m 260 N Answer: T₂ = i 0.4 m A T₂ 827.32 1.7 m 59° 1440 N B 0.70 m 1.40 m 660 N 240 N N

The L-shaped rod AOCD has an 80 kg mass hanging from it at B. The rod is leaning against a smooth wall at A. Point B is half way up OA. There is a journal bearing at C and a thrust bearing at D. They are properly aligned. A force F is pulling in the x-direction at B. Just as the rod comes off of the wall at A, what is the magnitude of the force F. 1 m B F 1m