A large plate is initially rotating about an axis through its center with angular velocity of 3wo as shown in the figure. The upperplate is initially not rotating and has the same mass but half the radius as the large plate.The small plate is lowered onto the large plate, and after a short time they will rotate together and will have the same finalangular velocity.Which of the following best describes the ratio of the kinetic energy of the system before the collision to after the collisionKEvefore ) ?KEafter(Ratio3w.O 1.50O 1.25О 1.00O 0.80O 0.67

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