A mass hangs by a massless string that is wound around a solid circular pulley of radius 20 cm. There is no friction in the pulley. The block is released from rest, and the pulley goes through three complete rotations (6 n radians) in 4 seconds. 0.2 m What is the magnitude of the angular acceleration? A) 3.1 rad/s? B) 2.4 rad/s? C) 6.3 rad/s? D) 5.2 rad/s2 E) 9.4 rad/s?

A mass hangs by a massless string that is wound around a solid circular pulley of radius 20 cm. There is no friction in the pulley. The block is released from rest, and the pulley goes through three complete rotations (6 n radians) in 4 seconds. 0.2 m What is the magnitude of the angular acceleration? A) 3.1 rad/s? B) 2.4 rad/s? C) 6.3 rad/s? D) 5.2 rad/s2 E) 9.4 rad/s?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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