20.6.19
Bodies 1 and 2, whose masses m1 = 5 kg and m2 = 8 kg, are driven by the applied forces F1 and F2. Choosing as the generalized coordinates s1 and s2, determine the acceleration s2 of the body 2 if the corresponding generalized forces QSl = 3H and QS2 = 5H. (Answer 0.625)