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AP EAMCET Engineering 18 Sep 2020 Shift 2 Paper
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© examsnet.com
Question : 111
Total: 160
A solid cylinder of mass
M
and radius
R
rolls on a flat surface. Its moment of inertia about the line of contact is ________
(
3
2
)
M
R
2
M
R
2
(
2
3
)
M
R
2
2
M
R
2
Validate
Solution:
Moment of inertia of solid cylinder of radius
R
and mass
M
about its axis is given as
I
C
M
=
1
2
M
R
2
.....(1)
Moment of inertia about contact line
A
B
is given
According to parallel axes theorem,
i.e.
I
A
B
=
I
C
M
+
M
R
2
=
1
2
M
R
2
+
M
R
2
=
3
2
M
R
2
© examsnet.com
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