A person spins a large grindstone 0.320-m radius, from rest, by placing his hand on its edge and exerting a force through part of a revolution as shown in the figure. 1. How much work is done if he exerts a force of 200 N through a rotation of 1.0 rad (57.3")? 2. The force is kept perpendicular to the grindstone at the point of application, and the effects of friction are negligible. Calculate the final angular velocity if the grindstone has a mass of 85.0kg. The grindstone is considered as a disk.

A person spins a large grindstone 0.320-m radius, from rest, by placing his hand on its edge and exerting a force through part of a revolution as shown in the figure. 1. How much work is done if he exerts a force of 200 N through a rotation of 1.0 rad (57.3")? 2. The force is kept perpendicular to the grindstone at the point of application, and the effects of friction are negligible. Calculate the final angular velocity if the grindstone has a mass of 85.0kg. The grindstone is considered as a disk.

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 80AP: The mass of a hoop of radius 1.0 m is 6.0 kg. It rolls across a horizontal surface with a speed of...

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