System Of Particles And Rotational Motion Ques 15
15. If a flywheel makes $120$ revolutions/minute, then its angular speed will be
[1996]
(a) $8 \pi $ $rad / sec$
(b) $6 \pi $ $rad / sec$
(c) $4 \pi $ $rad / sec$
(d) $2 \pi$ $ rad / s$
Show Answer
Answer:
Correct Answer: 15.(c)
Solution:
- (c) Angular speed, $\omega=\frac{120 \times 2 \pi}{60}=4 \pi $ $rad / sec$
BETA
