The diagram below shows a uniform density hollow cylindrical shell with a solid bottom and an open top. It has radius R and height h.

Find the height for the center of mass of this cylinder, taking the origin of the coordinate system at the center of the bottom.

Question

The diagram below shows a uniform density hollow cylindrical shell with a solid bottom and an open top. It has radius R and height h.

Find the height for the center of mass of this cylinder, taking the origin of the coordinate system at the center of the bottom.

jaredstone4 · Answer

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anonymous · Answer

It both top and bottom are open, the centre of mass is the centre of the cylinder 

If the bottom is closed, you also need to know: 
- internal radius (assuming R is the external radius) 
- thickness of base.

jaredstone4 · Answer

The bottom is closed and the top is open. Honestly I have no clue where to even find those two things. Wouldn't the internal radius also be equal to R? And what do you mean by the thickness of the base?