A Wheel, with Rotational Inertia I, Mounted on a Vertical

Multiple Choice

A wheel, with rotational inertia I, mounted on a vertical shaft with negligible rotational inertia, is rotating with angular speed _0.A nonrotating wheel with rotational inertia 2I is suddenly dropped onto the same shaft as shown.The resultant combination of the two wheels and shaft will rotate at:

A) " 11ef0073_2de9_2dad_bc85_0db466195743_TB6585_11 ₀ /2"
B) "2 11ef0073_2de9_2dad_bc85_0db466195743_TB6585_11 ₀"
C) " 11ef0073_2de9_2dad_bc85_0db466195743_TB6585_11 ₀ /3"
D) "3 11ef0073_2de9_2dad_bc85_0db466195743_TB6585_11 ₀"
E) " 11ef0073_2de9_2dad_bc85_0db466195743_TB6585_11 ₀ /4"