measurement
posted by Lindsay .
A trailer driver left Miami at 15:45 and arrived at his destination 637.5 km away at 02:15 the next day
a. How long did the journey take?
b. What was his average speed in km/h
c. What was his speed in ms^1?

a. From 3:45PM to 3:45AM = 12 hrs.
T = 12  (3:45Am2:15AM) = 10.5 Hrs.
b. Speed=637.5km / 10.5hrs. =60.7 km/h.
c. Speed = 60.7km/h = 60,700m/3600s =
16.9 m/s.