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16. Angular Momentum

Jumping Into/Out of Moving Disc

16. Angular Momentum

Jumping Into/Out of Moving Disc

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Jumping into a moving disc

Jumping into a moving disc

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Merry-Go-Round Physics

Merry-Go-Round Physics

Jumping onto a merry go round (PhysCasts)

Jumping onto a merry go round (PhysCasts)

Swinburne Commons

Conservation of angular momentum a child jumping on a merry go round

Conservation of angular momentum a child jumping on a merry go round

Merry-Go-Round - Conservation of Angular Momentum Problem

Merry-Go-Round - Conservation of Angular Momentum Problem

Flipping Physics

Physics - Mechanics: Angular Momentum (2 of 11) Ex. 1: Sand Bag on Rotating Disk

Physics - Mechanics: Angular Momentum (2 of 11) Ex. 1: Sand Bag on Rotating Disk

Michel van Biezen

Physics - Mechanics: Angular Momentum (3 of 11) Ex. 2: Child Jumping on Rotating Disk

Physics - Mechanics: Angular Momentum (3 of 11) Ex. 2: Child Jumping on Rotating Disk

Michel van Biezen

Jumping Into/Out of Moving Disc: Example: Jumping into a moving disc

Jumping Into/Out of Moving Disc: Example: Jumping into a moving disc

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A 200 kg disc 2 m in radius spins around a perpendicular axis through its center, with a person on it, at 3 rad/s counter-clockwise. The person has mass 70 kg, is at rest (relative to the disc, that is, spins with it) at the disc's edge, and can be treated as a point mass. If the person jumps tangentially out of the disc with 10 m/s (relative to the floor), as shown by the red arrow, what new angular speed will the disc have as a result?
BONUS: If the person steps out into ice with negligible speed of his/her own, what speed would it have upon exiting?
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