Question

A hoop of mass 500 gm & radius 10 cm is placed on a nail, then the moment of inertia of the hoop, when it is rotated about the nail will be____ $kg{m}^2$

• A. 0.05
• B. 0.02
• C. 0.01
• D. 0.03

Answer 1

Answer: (C)

$I=m{r}^2+m{r}^2=2m{r}^2$