# A disk of mass m is spinning freely at 6.00 rad/s when a secondidentical disk, initially not spinning, is dropped onto it so thattheir axes coincide. In a short time the two disks are corotating.(a) What is the angular speed of the new system? (b) If athird such disk is dropped on the first two, find the final angularspeed of the system.

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A disk of mass m is spinning freely at 6.00 rad/s when a second
identical disk, initially not spinning, is dropped onto it so that
their axes coincide. In a short time the two disks are corotating.
(a) What is the angular speed of the new system? (b) If a
third such disk is dropped on the first two, find the final angular
speed of the system.

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Step 1

Given:

Mass of the disc = m

Step 2

Calculating the new angular velocity if another dis...

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