Posted by Kelsey on Saturday, December 11, 2010 at 2:46pm.
a. Vf - Vo = 340 - 200 = 140 rev/mi =
140 rev/60 s = 2.33 rev/s.
a = (Vf - Vo)/t = 2.33 rev/s / 5.92 s =
0.39 rev/s^2.
b. 2.33 rev/s * 5.92 s = 13.8 REVs.
For Part B, do (340+200)/2=270 rpm to find the average rpm during acceleration. Then divide this answer by 60 seconds to find the average revolutions per second during acceleration 270/60=4.5 rev/sec. Multiply this answer by the amount of seconds it takes for it to accelerate and you will have your answer 4.5*5.92=26.64 rev.
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