System of Particles and Rotational Motion - Result Question 16
16. If a flywheel makes 120 revolutions/minute, then its angular speed will be
(a) $8 \pi rad / sec$
(b) $6 \pi rad / sec$
(c) $4 \pi rad / sec$
(d) $2 \pi rad / s$
[1996]
Show Answer
Answer:
Correct Answer: 16. (c)
Solution:
- (c) Angular speed, $\omega=\frac{120 \times 2 \pi}{60}=4 \pi rad / sec$
