SOLUTION: A car travels at 40 mph east for 20 miles then at 60 mph east for 15 minutes. How do you find the average speed and the average velocity?

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Question 1144179: A car travels at 40 mph east for 20 miles then at 60 mph east for 15 minutes. How do you find the average speed and the average velocity?
Found 2 solutions by josmiceli, Alan3354:
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Ave velocity is [ total displacement ] / [ total travel time ]
In this case, displacement is the same as distance traveled.
+t%5B1%5D+=+20%2F40+
+t%5B1%5D+=+1%2F2+ hr
and
+t%5B2%5D+=+1%2F4+ hr
-----------------------
+d%5B1%5D+=+20+ mi
and
+d%5B2%5D+=+60%2A%281%2F4%29+
+d%5B2%5D+=+15+ mi
-----------------------
Ave. vel. = +%28+20+%2B+15+%29+%2F+%28+1%2F2+%2B+1%2F4+%29+
Ave. vel. = +35+%2F+%28+3%2F4+%29+
Ave. vel. = +26.25+ mi/hr

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
A car travels at 40 mph east for 20 miles then at 60 mph east for 15 minutes. How do you find the average speed and the average velocity?
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Find the total distance (miles) and divide by the total time (hours).
that's the avg speed in mi/hr
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Velocity is speed and direction.