A coiled, massless cord is pulled off a drum made of solid material with a radius of
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Question:
A coiled, massless cord is pulled off a drum made of solid material with a radius of 20 cm and a mass of 10 kg (frictionless axis) with a constant force F=2.5.
a) How many revolutions does the drum make in the first 10 seconds?
b) Now the thread comes loose and the drum rotates freely. After a while, a snap mechanism engages and the rotation is slowed down by a torsion spring. This spring requires three turns before it brakes completely. Determine the righting moment (the angular righting amount) of the spring.
Related Book For
Horngrens Financial and Managerial Accounting
ISBN: 978-0133866292
5th edition
Authors: Tracie L. Nobles, Brenda L. Mattison, Ella Mae Matsumura
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