Initially, a system consisting of a platform of radius 3m and moment of inertia, Ip - 30 kgm' and two 3 kg mass at its edge is rotating about the center of the platform with an angular velocity of 0.2 rad/sec as shown. The masses are then simultaneously ejected with the same speed of v - 0.933 m/ relative to the ground as shown. [20] a) What is the initial moment of inertia of the system (platform + masses)? [20] b) Find the initial angular momentum of the system in unit vector notation. [20] c) Find the total angular momentum of the 2 masses once they are ejected in unit vector notation. [20] d) Confirm the angular momentum of the platform after the masses are ejected is equal to zero. [20] e) Find the total kinetic energy of the system initially and finally. 1 = 3 m m m Ly : 30 kymy +KO R +1 + W :. 2 rad/s m m