SOLUTION: a car moves from one station to another with 40 km/h and return with 60 km/h. find average speed and average velocity

Question 477460: a car moves from one station to another with 40 km/h and return with 60 km/h. find average speed and average velocity
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
a car moves from one station to another with 40 km/h and return with 60 km/h. find average speed and average velocity
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The average round trip speed is similar to parallel resistors and pipes filling tanks, but multiplied by 2.
Avg = 2*40*60/(40 + 60) = 48 km/hr
Notice that it's less than (40+60)/2 because more time is spent going 40 than going 60.
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Velocity is a vector that specifies speed and direction. It's often used to mean speed. No direction info is given here.

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