Calculate the time elapsed if the speed of a truck going south is reduced from 80 km/h to 44 km/h in a distance of 250 m.
Assume the deceleration rate is constant. Then,
(Average speed)*(time) = 0.25 km
62 km/h * time,h = 0.25 km
time = 0.00403 h = 14.5 seconds