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Grade: 11

                        

A thin wire of length l and mass m is bent in the form of a semicircle. The moment of inertia about an axis perpendicular to its plane and passing through the end of the wire is what???

2 years ago

Answers : (1)

Arun
24742 Points
							
 
use angular momentum conservation
I1w1=I2w2
as radius reduces by 1/n , moment of inertia of sphere reduces by 1/n2, so its angular velocity increases by a factor of n2
2 years ago
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