Q: A trolley T of mass 5 kg on a horizontal smooth surface is pulled by a load of 2 kg through a uniform rope ABC of length 2 m and mass 1 kg. As the load falls from BC = 0 to BC = 2 m, its acceleration (in ms-2) changes from
(a) 20/6 to 30/6
(b) 20/8 to 30/8
(c) 20/5 to 30/6
(d) None of these
Ans: (a)