The angular momentum of a spinning wheel is 240 kgm2 /s. After application of a constant braking

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The angular momentum of a spinning wheel is 240 kg·m2 /s. After application of a constant braking torque for 2.5 s, it slows and has a new angular momentum of 115 kg·m2 /s. What is the torque applied?
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Physics

ISBN: 978-0077339685

2nd edition

Authors: Alan Giambattista, Betty Richardson, Robert Richardson

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