Question

A uniform light rod AB 50cm long in equilibrium when forces 3N, 5N and X acts on it as shown in the figure below. Find the magnitude of the force X

Answer 1

(x × 0.1_m) = (5.1 × 0.05m) +3N ×0.23
0.1x=0.25NM + 0.75NM
0.1x=1.0NM
     x=10N