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## miriwee 3 years ago The figure below shows a cubical box that has been constructed from uniform metal plate of negligible thickness. The box is open at the top and has edge length L = 27 cm. Find the coordinates of the center of mass of the box. ____x coordinate ____y coordinate ____z coordinate

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1. miriwee

2. Sandeez

because it's a cubical box, all edges are the same length. therefore, the center of mass is the midpoint of each edge.

3. miriwee

but it has no top. I'm having trouble finding z. I know x and y are 13.5 but z its telling me the answer is different

4. Sandeez

oh i see. my first thought then is to take a physics approach then. because the bottom adds mass to the box, so the center of mass should actually be less than 13.5

5. miriwee

ok thanks. i think i got it now...and this is a physics based question lol

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