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I have an assignment to write a mini-essay of sorts on Atwood's machine. One of the things I need to cover is how to find the value of g by using Atwood's machine. I really have no idea how to do this. I was thinking about rearranging a= [(m_{2}-m_{1})g] / (m_{1}+m_{2}) but I don't understand how to get a.

Help would be greatly appreciated!

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# Homework Help: Finding g and Atwood's machine

**Physics Forums | Science Articles, Homework Help, Discussion**