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    Hi can someone please show me how to do this question, Ive been trying to do it for hours. I’ve got to be missing something.

    There is a 100g mass sitting on the 10cm mark, and a 50gmass sitting on the 60cm mark. Force acts at the 30cm mark. I’m told that the centre of mass is at the 50cm mark and I need to find force F

    Thanks
 
 
 
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