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That's the question. I'll try to describe the accompanying diagram.:

Basically theres a ramp sloping downwards to the right at an angle of 30 degrees. On the ramp is a block of mass 2M in motion. A string tied to the right end of the object leads down and right to the end of the ramp where it is connected to a pulley. The string passes through the pulley and extends directly downwards to an block of mass M.

I don't believe it is possible to solve this problem since too little information is given and you end up having three unknown variables and only two equations. There were five choices given, as it was a multiple choice question, so I should know if the solution provided matches one of the choices.