What is the speed of a car that travels 150 km in 3.00 hrs? Is the car speeding on 84th st? (1.0 m/s = 2.23 mi/hr)

Speed = (distance) / (time for the distance)

= (150 km) / (2 hours) = (150 / 2) (km/hour) = 75 km/hour.

(about 46.6 miles/hour)

We don't know the posted speed limit on 84th Street,

so have no basis on which to issue a traffic citation

for a moving violation.