Question: Two discs are initially spinning in opposite directions. The upper disc has rotational inertia of 1 0 kgm 2 and a rotation rate of 1

Two discs are initially spinning in opposite directions. The upper
disc has rotational inertia of 10kgm2 and a rotation rate of 12rad/s.
The lower disc has rotational inertia of 25kgm2 and a rotation rate of
8rad/s. The upper disc is dropped onto the lower disc and they stick
together. What is the rotation rate AND direction of the two disc
system?

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