Acar slows down from 22 m/s to 3 m/s at a constant rate of 3.5 m/s squared. how many seconds are required before the car is traveling at 3 m/s?

the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.

i believe the answer is a hope it and is correct

snell's law

refractve index = sin incidence / sin refraction