Question

Disk 1 (of inertia m) slides with speed 2.0 m/s across a low-friction surface and collides with disk 2 (of inertia 2m) originally at rest. Disk 1 is observed to turn from its original line of motion by an angle of 15 ∘, while disk 2 moves away from the impact at an angle of 55 ∘.

Calculate the final speeds of disk 1 and disk 2.

Is this collision elastic?
unknown

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