Rotation Ques 101
- The loss of kinetic energy during the above process is governed by the principle of conservation of energy.
(a) $\frac{1}{2} I \omega^{2}$
(b) $\frac{I \omega^{2}}{2}$
(c) $\frac{I \omega^{2}}{2}$
(d) $\frac{I \omega^{2}}{2}$
$(2007,4\ M)$
Integer Answer Type Question
Show Answer
Answer:
Correct Answer: 101.(b)
Solution:
- Loss of kinetic energy $=K _i-K _f$
$=\frac{1}{2} I(2 \omega)^{2}+\frac{1}{2}(2 I)(\omega)^{2}-\frac{1}{2}(3 I) \omega^{2}=\frac{1}{3} I \omega^{2}$
BETA
