You have a pulley 13.9 cm in diameter and with a mass of 1.3 kg. You get to wondering whether the pulley is uniform. That is, is the mass evenly distributed, or is it concentrated toward the center or the rim? To find out, you hang the pulley on a hook, wrap a string around it several times, and suspend your 1.3 kg physics book 1.5 m above the floor. With your stopwatch, you can find that it takes 0.74 s for your book to hit the floor. Use g=9.8 m/s2. What is the moment of inertia if the pulley is uniform? kg m2 What is the actual moment of inertia of the pulley based on your measurement? kg m2 What do you conclude about the pulley? The pulley is uniform (within 1% of uniform) The mass of the pulley is concentrated toward the center The mass of the pulley is concentrated toward the rim O O

You have a pulley 13.9 cm in diameter and with a mass of 1.3 kg. You get to wondering whether the pulley is uniform. That is, is the mass evenly distributed, or is it concentrated toward the center or the rim? To find out, you hang the pulley on a hook, wrap a string around it several times, and suspend your 1.3 kg physics book 1.5 m above the floor. With your stopwatch, you can find that it takes 0.74 s for your book to hit the floor. Use g=9.8 m/s2. What is the moment of inertia if the pulley is uniform? kg m2 What is the actual moment of inertia of the pulley based on your measurement? kg m2 What do you conclude about the pulley? The pulley is uniform (within 1% of uniform) The mass of the pulley is concentrated toward the center The mass of the pulley is concentrated toward the rim O O

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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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.

Question

You have a pulley 13.9 cm in diameter and with a mass of 1.3 kg. You get to wondering whether the pulley is uniform. That
is, is the mass evenly distributed, or is it concentrated toward the center or the rim? To find out, you hang the pulley on a
hook, wrap a string around it several times, and suspend your 1.3 kg physics book 1.5 m above the floor. With your
stopwatch, you can find that it takes 0.74 s for your book to hit the floor. Use g=9.8 m/s².
What is the moment of inertia if the pulley is uniform?
kg m²
What is the actual moment of inertia of the pulley based on your measurement?
kg m2
What do you conclude about the pulley?
The pulley is uniform (within 1% of uniform)
The mass of the pulley is concentrated toward the center
The mass of the pulley is concentrated toward the rim

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