Two masses m = 2.1 kg and m = 12.7 kg are attached to each other by a string passing through a massless pulley of radius R = 140 cm. m is also attached to vertical spring of stiffness constant k = 12 N/m and equilibrium length 2h, while m2 is held at a height of h = 2.4 m initially. (Take g = 9.8 m/s2). If the system is released from rest, 2h 17 R m h (10 points) Find the speed of the blocks right before m2 hits the ground.