Two cars are driving towards an intersection from perpendicular directions.
The first car's velocity is 10 meters per second and the second car's velocity is 6 meters per second.
At a certain instant, the first car is 4 meters from the intersection and the second car is 3 meters from the intersection.
What is the rate of change of the distance between the cars at that instant (in meters per second)?
A)-5
B)-11.6
C)-10.8
D)- root 136