Four spheres of diameter 
and mass 
are placed with their centres on the four corners of a square of side 
. Then the moment of inertia of the system about an axis along one of the sides of the square is
a)
b)
c)
d)
Four spheres of diameter and mass are placed with their centres on the four corners of a square of side . Then the moment of inertia of the system about an axis along one of the sides of the square is
a)
b)
c)
d)
Question ID - 53640 | SaraNextGen Top Answer
Four spheres of diameter and mass are placed with their centres on the four corners of a square of side . Then the moment of inertia of the system about an axis along one of the sides of the square is
a)
b)
c)
d)
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Four spheres of diameter |
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a) |
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b) |
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c) |
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d) |
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1 Answer
127 votes
Answer Key / Explanation : (b) -
(b)
We calculate moment of inertia of the system about 
.png)
Moment of inertia of each of the sphere 
and 
about
Moment of inertia of each of the sphere 
and 
about 
Using theorem of parallel axes
Total moment of inertia
127 votes
Answer Link
127