have managed to work out th centre of gravity by splitting the shape up into a rectagle and triangle

but i dont know how to combine them to get a c.o.g for he full shape.

the informaion is attatched.

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- Dec 8th 2008, 01:23 PMbandy1989centre of gravity
have managed to work out th centre of gravity by splitting the shape up into a rectagle and triangle

but i dont know how to combine them to get a c.o.g for he full shape.

the informaion is attatched. - Dec 8th 2008, 02:21 PMSkalkaz
If we have two mass point than the centre of gravity is the weighted mean:

$\displaystyle \vec r = (m_1*\vec {r_1} + m_2*\vec {r_2}) : (m_1 + m_2)$