2) [ 35 pts] The pendulum shown is composed of a long slender yellow rod attached to a redsphere. The pendulum pivots about point A without friction. The pendulum is

at rest in the positionshown when a clockwise moment M is suddenly applied. The yellow rod has a mass of 70 kg and its length L is 0.5 m. The red sphere has a mass of 50 kgand its radius R is 0.2 m. The applied moment M = 200 N-m clockwise. a) Determine the angular acceleration of the assembly, a (in rad/s2), at the instant the moment isapplied (magnitude and direction). b) Determine the reaction force at point A, FA (in N), at the instant the moment is applied(magnitude and direction).