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1. |
A wheel accelerates uniformly from rest to 2000 r.p.m. in 20 seconds.How many revolutions does the wheel make in attaining the speed of 2000 r.p.m.? |
A. | 333.4 |
B. | 444.4 |
C. | 555.4 |
D. | 666.4 |
Answer» B. 444.4 | |