Question
Question: Moment of inertia of a ring of mass m=3 gm and radius r =1 cm about an axis passing through its edge...
Moment of inertia of a ring of mass m=3 gm and radius r =1 cm about an axis passing through its edge and paralled to its natural axis is:
A
10 gm-cm2
B
100 gm-cm2
C
6 gm-cm2
D
1 gm-cm2.
Answer
6 gm-cm2
Explanation
Solution
I = 2 MR2 = 2×3×(1)2 = 6gm-cm2