Figure shown 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 `40 cm`. The z co-ordinate of the centre of mass of the box in cm, is. .
Figure shown a cubical box that has been constructed from uniform metal plate of .
Figure shown 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 `40 cm`. The z co-ordinate of the centre of mass of the box in cm, is. .
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