College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Chapter 9, Problem 31P
Four small 0.200 kg spheres, each of which you can regard as a point mass, are arranged in a square 0.400 m on a side and connected by light rods. (See Figure 9.28.) Find the moment of inertia of the system about an axis (a) through the center of the square, perpendicular to its plane at point O; (b) along the line AB; and (c) along the line CD.
Figure 9.28
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Please help with part (b)
Q.12 Consider a uniform thin circular disk of radius R and mass M. A concentric square of side R/2 is cut
out from the disk (see figure). What is the moment of inertia of the resultant disk about an axis
passing through the centre of the disk and perpendicular to it?
R
R/2
MR?
(A) I =
4
48 n.
MR2
(B) 1 = "
1 -
48 n
M R?
(C) I =
24 n
MR?
(D) I =
24
Chapter 9 Solutions
College Physics (10th Edition)
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