Please solve

Method of Attack Problem 1 Pin-connected bars AB and BC 81: {wAB = war: = 0) in the vertical plane, with the end A being pin-xed and the end C lying on the ground. Bars have the same length l = 2 m and form 450 angle with the horizon as shown. Mass of the slender bar BC is 3 kg, while th_e mass of the bar AB can be neglected. At the instant, couple M is applied to the bar BC supplying the acceleration of ac = 6 m/s2 towards A to the end of the bar C (along the ground