SOLUTION: A train travels due North for 450km at a rate of 65km/hr. It then turns sharply due East and travels for an additional 500km at a slower rate of 60km/hr What is the average spee

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Question 1128839: A train travels due North for 450km at a rate of 65km/hr. It then turns sharply due East and travels for an additional 500km at a slower rate of 60km/hr
What is the average speed?
What is the average velocity?
Answer by addingup(3677) About Me  (Show Source):
You can put this solution on YOUR website!
450 + 500 = 950 total km
450/950 = 0.4737 this means 47.37% of the distance it was going at 65km/hr
500/950 = 0.5263 and 52.63% of the time it was going at 60km/hr
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
65*0.4737 = 30.79
60*0.5263 = 31.58
. . . . . --------
Total: . . . 62.37km/h
your average speed is 62.37
your average velocity is 30.79 North, 31.58 East
Note: velocity is the speed and the direction of travel