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two bodies A and B made of the same material have the moment of inertia in the ratio Ia:Ib= 16:18. The ratio of the masses Ma:Mb is given by

two bodies A and B made of the same material have the moment of inertia in the ratio Ia:Ib= 16:18. The ratio of the masses Ma:Mb is given by

Grade:11

1 Answers

Amogh Gajare
60 Points
8 years ago
Hello.We have to find Moment of inertia of point particle as shape is not mentioned.For a point particle,
I = mr2
By formula we can see that I (Moment of inertia) is directly proportional to m (Mass)
So we can derive a simple relationship i.e. I1*m1 = I2*m2  
It is given that IA : IB = 16:18
So by calculation we get, m1:m2 = 9 : 8
 
 
 

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