1. The problem statement, all variables and given/known data A playground carousel is rotating about its center. The radius of the carousel is 1.5m, its initial angular speed is 3.14 rad/s and its moment of inertia is 125 kg m^2. A 40kg person climbs onto the carousel near its outer edge. What is the angular speed of the carousel after the person climbs aboard? 2. Relevant equations Krot = 1/2 I W^2 L=IW I = intergral r^2 dm I = Icm + Md^2 Here's the kicker we can't use the equations for the moment of inertia about a rotating disk. Can't use I = 1/2MR^2 3. The attempt at a solution I'm just lost I've tried solving this problem multiple ways with different equations. This is my last attempt Li=Lf IiWi = IfWf IiWi/Wf = If 1/2 Ii Wi^2 = 1/2 If Wf^2 1/2 Ii Wi^2 = 1/2 IiWi/Wf * Wf^2 Ii Wi^2 / Ii Wi = Wf (125 * 3.14^2) / (125*3.14) = Wf = 3.14 Am I any where close!!!