madisonskye8346 madisonskye8346

07-06-2018
Physics

contestada

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?

Respuesta :

17-06-2018

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

Answer Link

Otras preguntas

How do you do this problem? 12y = 1224 12 x y = 1224 1224 divided by 12 = y

“ he who accepts evil without protesting against it is really cooperating with “

The initial _____ and subsequent _______ of ________ can be observed on an oscilloscope when testing the starter motor. Select one: a. Drop; surge; voltage b. S

In addition to surface tension, what's responsible for driving ocean waves? A. The Coriolis effect B. Thermohaline circulation C. Drag from wind D. Cen

Someone help me understand how to do this

What is the value of b in the equation 1=6b-7

Steve can train 48 dogs in 6 hours. How many dogs can Steve train in 10 hours?

Indira Gandhi became India’s first female prime minister because

1. What did the ancient Aztec civilization have that the Maya civilization lacked? A calendar system Impressive architecture A knowledge of organized warfare A

find the equation of the line through (6,4) and (-3,-8)