Recent content by yjx

If there is a stick in space and you provide an impulse on one end of the stick, then will it rotate or will it simply undergo translational motion in a straight line? If you have the stick on Earth on top of a surface then it will rotate about its centre of mass which acts as the pivot...

Ah of course, I'd read the equation wrongly. I thought that the gamma was within the division which it isn't. Now it makes perfect sense! I blame poor equation writing (obviously not my failure to count the number of brackets). Thanks for the help!

Ok, there's a bit I don't understand in my lecture notes. The maths doesn't seem to quite work out. Any help would be appreciated. Here's the section I'm confused about: http://img228.imageshack.us/i/physy.jpg/ It's the transition from the second last line of working to the last line which I...