Point masses 1, 2, 3 and 4 kg are lying at the point (0, 0, 0), (2, 0, 0), (0, 3, 0) and (-2, -2, 0) respectively. The moment of inertia of this system about 
-axis will be
a)
43 kg-
b)
34 kg-
c)
27 kg-
d)
72 kg-
Point masses 1, 2, 3 and 4 kg are lying at the point (0, 0, 0), (2, 0, 0), (0, 3, 0) and (-2, -2, 0) respectively. The moment of inertia of this system about -axis will be
a)
43 kg-
b)
34 kg-
c)
27 kg-
d)
72 kg-
Question ID - 52684 | SaraNextGen Top Answer
Point masses 1, 2, 3 and 4 kg are lying at the point (0, 0, 0), (2, 0, 0), (0, 3, 0) and (-2, -2, 0) respectively. The moment of inertia of this system about -axis will be
a)
43 kg-
b)
34 kg-
c)
27 kg-
d)
72 kg-
|
Point masses 1, 2, 3 and 4 kg are lying at the point (0, 0, 0), (2, 0, 0), (0, 3, 0) and (-2, -2, 0) respectively. The moment of inertia of this system about |
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|
a) |
43 kg- |
b) |
34 kg- |
c) |
27 kg- |
d) |
72 kg- |
|
1 Answer
127 votes
Answer Key / Explanation : (a) -
(a)
Moment of inertia of the whole system about the axis of rotation will be equal to the sum of the moments of inertia of all the particles.
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Answer Link
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