an object accelerate from the rest at a constant rate of 4ms-2 for a distance 200m how fast is the object moving at the time? how long does it take for the object to reach that velocity?

**urgent** roberto plans to use two transformers to reduce a voltage of 120 v to 4 v. he uses a transformer that has 300 coils in the primary winding and 50 coils in the secondary winding. he has four other transformers, as listed in the table. which transformer should roberto use to have an ending voltage of 4 v? a- w b-xc- yd- z