A car drives 40 miles on local roads at 20 mph, and 180 miles on the highway at 60 mph, what is the average speed of the entire

Question

Natalija [7]

3 years ago

8

A car drives 40 miles on local roads at 20 mph, and 180 miles on the highway at 60 mph, what is the average speed of the entire

trip?

Physics

1 answer:

Sav [38] · Answer 1 · 2022-05-24T22:38:12+03:00

Sav [38]3 years ago

6 0

40 miles at 20 mph takes 2 hours
180 miles at 60 mph takes 3 hours

Average speed = Total distance / Total time 
= (40 + 180) / (2 + 3) 
= 220 / 5
= 44

The correct answer is 44 m/s