Rotational Motion Question 205
A rod of mass m and length $l$ is bent into a shape of Z. Its moment of inertia about the axis :
Options:
A)$\frac{ml^{2}}{6}$
B) $\frac{ml^{2}}{3}$
C) $\frac{ml^{2}}{2}$
D) None
Show Answer
Answer:
Correct Answer: A
Solution:
[a]
$I=\frac{\frac{m}{2}{{\left( \frac{\ell }{2} \right)}^{2}}}{3}+\frac{m}{2}{{\left( \frac{\ell }{2} \right)}^{2}}=\frac{m{{\ell }^{2}}}{12}$
BETA
