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Introductory Physics Homework Help
Why is the angular momentum negative in a disk and stick collision?
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[QUOTE="haruspex, post: 6579951, member: 334404"] ## L_{f} = -rm_{d}V_{df} + I\omega## is the final angular momentum of ball plus stick. That of the ball is just ## L_{f} = -rm_{d}V_{df} ## As is a common standard, the author is taking anticlockwise rotation as positive. What is misleading is that the diagram shows ##\omega## as being measured clockwise. To be correct, it should indicate the rotation as anticlockwise, but understanding that it will come out negative. [/QUOTE]
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Introductory Physics Homework Help
Why is the angular momentum negative in a disk and stick collision?
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