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Calculating Average Speed

  • Thread starter black_hole
  • Start date
  • #1
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0

Homework Statement



Calculate the average speed of a complete round trip in which the first 148.6 km is covered at 84.6 km/hr, followed by a 1.2-hour lunch and the final 148.6 km is covered at 50.6 km/hr.


Homework Equations





The Attempt at a Solution



148.6+148.6/.569+1.2+.341 = wrong
 

Answers and Replies

  • #2
tiny-tim
Science Advisor
Homework Helper
25,832
251
Hi black_hole! :smile:

erm :redface:

speed = distance/time, so time = distance/speed. :wink:
 

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