3. Two slender rods of negligible weight are pin connected at C and attached to blocs A and B. The force P is acting vertically downwards at C. Magnitude of force P, angles of e and a, masses of each block and respective coefficient of friction between the horizontal surface and blocs are given below. Determine by calculation a. whether the blocs are in equilibrium or not b. If not which block will move? P= 120 N P 0= 30 a= 55 mA= 15 kg a USA= 0,35 mB= 10 kg usB= 0,30