What do these units have in common?

9 MPH NORTH

2.3 KM

4 MM/S

92 MILES

800 MM

3 M/S DIRECTLY TOWARDS THE CAR

2 MPH

6 S

0.5 KM PER HOUR

4 METERS

24 M/S TO THE LEFT

118 SECONDS

8 M/S

42 MIN

190 KM/H DOWNWARD

2 HRS