202 submissions
,
160 unreviewed
4,981 questions
,
2,140 unanswered
5,339 answers
,
22,619 comments
1,470 users with positive rep
813 active unimported users
More ...
If angular momentum is defined as the cross product of momentum and radius and momentum is conserved, how is it reasonable to assume that the momentum will change when we change the radius ?