How to calculate centre of mass of remaining part of an object

Question

Uniform solid hemisphere radius r solid cone cutted out base radius r upon 2 r is 5 then height of centre of mass of remaining object

Answer 1

Please consider visiting http://www.aqua-calc.com/calculate/volume-truncated-cone for a live solution. Also, you can get theoretical information on http://www.askiitians.com/iit-jee-physics/mechanics/centre-of-mass.aspx

https://youtu.be/VrflZifKIuw