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Average speed of motorist

  • Thread starter rcmango
  • Start date
  • #1
234
0

Homework Statement



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


Homework Equations





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.
 

Answers and Replies

  • #2
234
0
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.
 

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