The two blocks are released from rest when r = 2.4 ft and θ = 30°. Neglecting the mass of...

The two blocks are released from rest when r = 2.4 ft and θ = 30°. Neglecting the mass of the pulley and the effect of friction in the pulley and between block A and the horizontal surface, determine (a) the initial tension in the cable, (b) the initial acceleration of block A, (c) the initial acceleration of block B.

Fig. P12.74