Hi friends, I have an issue in solving a Acceleration of center of mass problem. Please Help me in solving this. Thank you all in advance. The problem is as: https://fbcdn-sphotos-a-a.akamaihd.net/hphotos-ak-prn2/q71/s720x720/1395961_1432382973655475_777941089_n.jpg Attempt: https://fbcdn-sphotos-d-a.akamaihd.net/hphotos-ak-ash4/q82/s720x720/1381887_1432380636989042_263502974_n.jpg Friends according to me the answer should be Option (b) but question says the answer is option (a).Please try to help me in this. I will appreciate the help.