posted by John .
Two blocks with masses m1 = 3.9 kg and m2 = 6.7 kg are connected by a string that hangs over a pulley of mass M = 2.2 kg and radius R = 0.11 m as shown above. The string does not slip. Assuming the system starts from rest, use energy principle find the speed of m2 after it has fallen by 0.4 m. Treat the pulley as a disk.
This is your sixth post that I have looked at. In NONE do I see any evidence of YOUR work. Are you merely flooding the board with your questions? If so, you will get no answer. We HELP here by answering questions you post, but we do not DO the work for you.
the work is on a forum that actually helps ppl