Recent content by Thorskur

So there is no 2mgh? Just mgh? I still can't figure out how i can get 5 there.

Homework Statement Sorry guys but uploading the image didnt work so i post it on imageshack. Here is the link: http://imageshack.us/f/208/apib.jpg/ So the quastion is: In the image the pulley is a uniform cylindrical disk of mass m and radius r. The strings are massless and there...