A car travels along a straight stretch of road.

It proceeds for 16.1 mi at 56 mi/h, then 24 mi
at 46 mi/h, and finally 36.9 mi at 37.3 mi/h.
What is the car’s average velocity during
the entire trip?
Answer in units of mi/h.

2 answers

d = 16.1 + 24 + 36.9 = 77 mi.

T = 16.1/56 + 24/46 + 36.9/37.3 = Hours.

Vavg = d/T.
39.9 mi/h