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Q. |
A grinding wheel rotates at 3000 rpm. When power supply is cut off the wheel stops in 5 sec. The number of revolutions made by the wheel before coming to rest would be |
A. | 500 |
B. | 107 dynes |
C. | 250 |
D. | 3000 |
E. | 1000 |
Answer» C. 250 |
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