Recent content by Gian Lukmana

alright, got it now, thank you so much !

Yeah, I heard that we can't treat other shapes as a sphere, so we can't just blindly use the normal formula. To confirm, does this mean y should be the distance of the particle and the upper surface of the cylinder ?

Hi everyone I'm kinda new here, your support will really be appreciated ! :D 1. Homework Statement Let's say the cylinder has radius R, and height T. Homework Equations U = ∫GmdM/x The Attempt at a Solution My attempt is shown in the picture, I took a tiny element of the cylinder with...

I still don't really get the concept of moments.. if moment is what makes things rotate, imagine this : ....... F (pushing down the stick) ===================(stick) A so : 1. the stick will rotate in a clockwise direction, 2. but the direction of the moment is negative Z.. (right hand rule)...