At wits ends please someone help!!! Okay I've been going at this problem for the last three days...I went to the physics tutors at school and they were no help!!! Please someone help me with this one!!!! Here's the problem: A woman of mass m stands at the edge of a solid cylinderical platform of mass M and radius R. At t=0, the platform is rotating with negligible friction at an angular velocity w about a fixed vertical axis through its center and the person begins walking with speed v toward the center of the platform. Determine the angular velocity of the system as a function of time and what will be the angular velocity when the women reaches the center? Now i know this has to deal with momentum conservation and the change in the moment of inertia for each situation. But I can't get that down on paper!!! PLEASE PLEASE HELP!!!