College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Transcribed Image Text:Problem 1.
A uniform, hollow, cylindrical spool has inside
radius R/2, outside radius R, and mass M. It is
mounted so that it rotates on a fixed, horizontal
axle. The friction force between the axle and
M
the spool causes
counterweight of mass m is connected to the
end of a string wound around the spool. The
counterweight falls initially from rest to a
position y at time t.
an average torque Tf. A
R/2
т
(a) Use the integration method to find the
moment of inertia of the spool as a function of
M and R.
R/2
mg- T
(b) Show that
y=4t?
8 т+5 М
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