1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Average speed

  1. Dec 4, 2007 #1
    1. The problem statement, all variables and given/known data

    a motorist travels at 30 miles at 60 miles per hr, and then 60 miles at 30 miles per hr.

    what is the average speed


    2. Relevant equations



    3. The attempt at a solution

    I have tried to set this up and i get every answer, except 36 m/hr, can you please point me the equation set up! thanks.
     
  2. jcsd
  3. Dec 4, 2007 #2
    nevermind, i already posted this and i saw the thread on how to do it.

    its the distance of 90, divided by .5 hrs + 2hrs which is 36 miles per hour.


    sorry for the double post.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Average speed
  1. Average speed (Replies: 3)

  2. Average speed (Replies: 1)

  3. Average speed (Replies: 1)

  4. Average speed (Replies: 2)

Loading...