Question

The value of radius of gyration for a uniform rod of mass M and length l is

a) 0.1 l

b)0.289 l

c) 0.389 l

d) 0.5​

Answer 1

Answer:

The moment of inertia of a rod of mass m about an axis perpendicular to it at one of its ends is given by I=ML

2

/3. Comparing this with the general equation for the moment of inertia, we get, I=MK

2

, K is the radius of gyration, we get K=L/√3

Hope this will help