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Per NCERT §6.9 (radius of gyration), if I = M k², then k represents which?
AHalf the radius of mass
BRadius of the body always
CRadius of gyration of the body
DTotal mass per length
Answer & Solution
Correct answer: C. Radius of gyration of the body
NCERT §6.9: k = √(I/M). Geometric property depending on mass distribution about the axis.
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