SOLUTION: I flew from Pheonix to Tucson, a distance of 120 miles, at a constant speed of 120 mph, I then returned at a constant speed of 60 mph. what is my average speed, trip distance, disp

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Question 275400: I flew from Pheonix to Tucson, a distance of 120 miles, at a constant speed of 120 mph, I then returned at a constant speed of 60 mph. what is my average speed, trip distance, displacement, and average velocity?
Found 2 solutions by Alan3354, ankor@dixie-net.com:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
I flew from Pheonix to Tucson, a distance of 120 miles, at a constant speed of 120 mph, I then returned at a constant speed of 60 mph.
what is my average speed? 240/3 = 80 mph
trip distance? 240 miles
displacement? relative to what?
and average velocity? Velocity is a vector that includes speed and direction. It's often used to mean speed, and speed has already been calculated.
I don't think averages apply to vectors, either.
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Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
I flew from Pheonix to Tucson, a distance of 120 miles, at a constant speed of 120 mph,
I then returned at a constant speed of 60 mph.
what is my average speed, trip distance, displacement, and average velocity?
:
Let s = average speed
120%2F120 + 120%2F60 = 240%2Fs
3 = 240%2Fs
3s = 240
s = 80 mph average speed, for 240 miles
:
You returned to your starting points so displacement = 0
Therefore the average velocity is 0 also
: