Twin skaters approach one another as shown in the figure below and lock hands. (a) Calculate their final angular velocity, given each had an initial speed of 1.50 m/s relative to the ice. Each has a mass of 73.0 kg, and each has a center of mass located 0.730 m from their locked hands. You may approximate their moments of inertia to be that of point masses at this radius.  rad/s (b) Compare the initial kinetic energy and final kinetic energy.

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Chapter1: Units, Trigonometry. And Vectors
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Twin skaters approach one another as shown in the figure below and lock hands.
(a)
Calculate their final angular velocity, given each had an initial speed of 1.50 m/s relative to the ice. Each has a mass of 73.0 kg, and each has a center of mass located 0.730 m from their locked hands. You may approximate their moments of inertia to be that of point masses at this radius.
 rad/s
(b)
Compare the initial kinetic energy and final kinetic energy.
Initial kinetic energy is greater than final kinetic energy.
Initial kinetic energy is the same as final kinetic energy.   
 Initial kinetic energy is less than final kinetic energy.
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