A strap, rod, or something comparable is used to spin up the disc. I imagine someone hand-starting a lawnmower. If he pulls the strap with a final speed before pulling the strap away, what is the rotation rate of the disk, w in rev/s? The moment of inertia of a disc is 1/2MR?. There's no sliding. • Strap's final speed = v = 1.11 m/s. • The disc's radius is R = 0.8 m • The small disc's radius is 2 cm The disc's mass is M = 2.6 kg %3D

A strap, rod, or something comparable is used to spin up the disc. I imagine someone hand-starting a lawnmower. If he pulls the strap with a final speed before pulling the strap away, what is the rotation rate of the disk, w in rev/s? The moment of inertia of a disc is 1/2MR?. There's no sliding. • Strap's final speed = v = 1.11 m/s. • The disc's radius is R = 0.8 m • The small disc's radius is 2 cm The disc's mass is M = 2.6 kg %3D

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter11: Angular Momentum

Section: Chapter Questions

Problem 72P: An ice skater is preparing for a jump with turns and has his arms extended. His moment of inertia is...

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