Hi friends, I have an issue in solving a Conservation of linear momentum problem. Please Help me in solving this. Thank you all in advance. The problem is as: https://fbcdn-sphotos-f-a.akamaihd.net/hphotos-ak-frc3/q71/s720x720/1379404_1432382880322151_1349912335_n.jpg Attempt: https://fbcdn-sphotos-a-a.akamaihd.net/hphotos-ak-prn2/q80/s720x720/1234574_1432380606989045_407245962_n.jpg https://fbcdn-sphotos-b-a.akamaihd.net/hphotos-ak-ash4/q84/s720x720/1391595_1432380693655703_759644108_n.jpg Friends I am not sure of that, what I am doing is absolutely correct. Please try to help me. I will appreciate the help.