V PartA Block A in (gure 1) has mass 1.15 kg , and block B has mass 2.85 kg . The blocks are forced . together, compressing a spring 8 between them; What Is the nal speed 0f block A? then the system is released from rest on a level, Express your answer in meters per second. frictionless surface. The spring, which has negligible mass, is not fastened to either block and drops to the surface after it has expanded. Block B acquiresaspeedof1.20m/s. I'D/i A243 6 9 O ? \"A; = Ill/S R_equest Answer V PartB How much potential energy was stored in the compressed spring? Express your answer in joules. .E/Aquw Figure 101:1 I\" I" Submit R_equest Answer initials