Who will win the race?

The red car is 6,000 meters from the finish line and is
traveling at a constant speed of 60 meters/second at a certain instant in time.
The green car is 9,000 meters away from the finish line and is accelerating
from rest at this very same instant in time. Who will win the race if the
green car is accelerating at a rate of 4 meters/second^{2}?
Who would have won the race if the red car would have been traveling at a
constant speed of 90 meters/second?

The red car is 8,000 meters from the finish line and is
accelerating from rest at a rate of 2 meters/second^{2} at a certain instant in time.
The green car is 9,000 meters from the finish line and is traveling at a
constant speed of 90 meters/second at this very instant in time. Who will
win the race?
