2-62
A truck travels at 80 km/h for 30 min, then at 60 km/h for 1.5 hr.
Assuming 2 significant digits in the given numbers, calculate the
truck's
(a) total distance traveled, and
(b) average speed.
Correct!
The distance traveled d in time Dt
at a constant speed is given by:
A 
B 
C 