The Student Room Group
Post your working, we'll see what we can do.
I presume you have the centre of mass as (-1/3, 5/4)? (Or at least, that's what I got - never was any good at centre of mass, dunno why. :smile:)

Edit: ignore me, misread the question.
Reply 3
ok, well i dont have a clue in all honesty if what im doing is correct. here are my workings, i may have made a few assumptions aswell.

Reply 4
i really need to get this done but i have missed a few lessons and have spent ages trying to work out how to do it.

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