A solid disk flywheel of mass 38.0 kg and radius 120 cm starts from rest and rotates clockwise up to an angular speed of 20 RPM in a time of 4.80 seconds. I) What is the angular acceleration of the flywheel? (a) 4.17 rad/s? (b) 2.62 rad/s (c) 0.436 rad/s² (d) 0.218 rad/s? II) If the driving torque of the flywheel is 15.0 N m, what is the friction torque? (a) 3.06 N m (b) 26.9 N m (c) 13.6 N m (d) 13.9 N m
A solid disk flywheel of mass 38.0 kg and radius 120 cm starts from rest and rotates clockwise up to an angular speed of 20 RPM in a time of 4.80 seconds. I) What is the angular acceleration of the flywheel? (a) 4.17 rad/s? (b) 2.62 rad/s (c) 0.436 rad/s² (d) 0.218 rad/s? II) If the driving torque of the flywheel is 15.0 N m, what is the friction torque? (a) 3.06 N m (b) 26.9 N m (c) 13.6 N m (d) 13.9 N m
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter10: Rotation Of A Rigid Object About A Fixed Axis
Section: Chapter Questions
Problem 10.2P: A potters wheel moves uniformly from rest to an angular speed of 1.00 rev/s in 30.0 s. (a) Find its...
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