-1 A constant torque applied to a rotor for 50.0s causes the rotor to reach a final rotational velocity of 12.5rev/min clockwise starting from rest. When the applied torque is removed, the torque due to friction causes the rotor angular velocity to go from 12.5rev/min clockwise to 5.0rev/min clockwise in 35.0s. a) Find the angular acceleration of the rotor in rad/s when it was increasing in speed. b) Find the angular acceleration of the rotor in rad/s when it was decreasing in speed. c) Complete the following sentences. 1) When angular speed is increasing, the signs of o and a are 2) When angular speed is decreasing, the signs of o and a are

-1 A constant torque applied to a rotor for 50.0s causes the rotor to reach a final rotational velocity of 12.5rev/min clockwise starting from rest. When the applied torque is removed, the torque due to friction causes the rotor angular velocity to go from 12.5rev/min clockwise to 5.0rev/min clockwise in 35.0s. a) Find the angular acceleration of the rotor in rad/s when it was increasing in speed. b) Find the angular acceleration of the rotor in rad/s when it was decreasing in speed. c) Complete the following sentences. 1) When angular speed is increasing, the signs of o and a are 2) When angular speed is decreasing, the signs of o and a are

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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