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I need to find the acceleration of this system. I did all the calculations but I'm stuck at the end and I'm pretty sure I did something wrong.. Could someone verify this? I just scanned the paper I'm working on. Also, sorry if I dont use the same signs you use, I'm translating this from french.

PS: The teacher told me I can group pulley2 and mass2 so that's what I called M3

Thanks a lot

http://img99.exs.cx/img99/5910/Picture61.jpg

Click to enlarge

I recommend you save it and scale down the zoom

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# Homework Help: Detailed problem I did need verification

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