Can someone help with this question at the following link?

Question

jiskha.com/questions/1799606/Let-G-be-the-center-of-gravity-of-a-uniform-solid-rectangular-parallelepiped-with

Please add www. and necessary terms accordingly, as I can't post links within a question.

Thanks!

Answer 1

https://www.jiskha.com/questions/1799606/Let-G-be-the-center-of-gravity-of-a-uniform-solid-rectangular-parallelepiped-with