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Motion in a Plane :: Discussion
| 8. | Calculate the angular speed of flywheel making 420 revolutions per minute. | |
| A. | 42300 rad/sec | |
| B. | 1200 rad/sec | |
| C. | 10/4200 rad/sec | |
| D. | 44 rad/sec | |
| Answer: Option D | |
| Explanation: | |
|
v = 420/60 revolution/ second ω = 2πv = 2 × 22/7 × 420/60 = 44rad/sec. |
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