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The angular momentum of a freely rotating disk around its center is ldisk. you toss a heavy block horizontally onto the disk along the direction shown. friction acts between the disk and the block so that eventually the block is at rest on the disk and rotates with it. we will choose the initial angular momentum of the disk to be positive. 1) what is the total, the magnitude of the angular momentum of the disk-block system

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shinmin

Angular momentum is the rotational corresponding of linear momentum. Just like linear momentum, angular momentum is a preserved quantity, so it should remain the same. Meaning: L = r x p = r x mv.

So therefore, the answer would be L total would be equal to the L disk.

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