College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Concept explainers

Torque
Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.
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question 30 in the image

A box (40 kg) is attached to a heavy pulley (with mass 8 kg and radius of 20 cm, treat it as a solid www.G disk). Initially the box is hung 6 meters above the ground. 28. find the velocity of the box when it strikes the ground. a. 11 m/sec b. 10 m/sec c. 9 m/sec d. 8 m/sec 29. find the tension on the string. a. 78.4 N c. 35.6 N b. 392 N d. 178 N 30. find the angular acceleration of the pulley. a. 44.5 rad/s² b. 49 rad/s² c. 38 rad/s² a T Mg سر d. 53 rad/s² TH m T 6m
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Transcribed Image Text:A box (40 kg) is attached to a heavy pulley (with mass 8 kg and radius of 20 cm, treat it as a solid www.G disk). Initially the box is hung 6 meters above the ground. 28. find the velocity of the box when it strikes the ground. a. 11 m/sec b. 10 m/sec c. 9 m/sec d. 8 m/sec 29. find the tension on the string. a. 78.4 N c. 35.6 N b. 392 N d. 178 N 30. find the angular acceleration of the pulley. a. 44.5 rad/s² b. 49 rad/s² c. 38 rad/s² a T Mg سر d. 53 rad/s² TH m T 6m
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