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AP EAMCET Engineering 2011 Solved Paper
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© examsnet.com
Question : 14
Total: 160
A thin hollow sphere of mass
m
is completely filled with a liquid of mass
m
. When the sphere rolls with a velocity
v
, kinetic energy of the system is (neglect friction)
1
2
m
v
2
m
v
2
4
3
m
v
2
4
5
m
v
2
Validate
Solution:
Total energy
=
K
E
+
rotational
K
E
=
1
2
(
2
m
)
v
2
+
1
3
m
v
2
=
4
3
m
v
2
© examsnet.com
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