1. A variable speed electric drill motor turning at 100 rev/s is uniformly accelerated at 53.0 rev/s2 up to 210 rev/s. How many turns does it make in the process? 2. (Accel f - Accel) i x speed 3. I took 210 - 53 = 157 and multiplied that by 100 and that gave me 15,700 rev. This anser is incorrect. Please advise.