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An airplane flies 800 km east and 600 km north. What is the total displacement (with approximate direction)? What is the total distance traveled?

 Jan 31, 2019
 #1
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Total displacement is found using pythagorean theorem

d = sqrt( 800^2 + 600^2) = 1000 km

 

Direction is given by Tan = opp/adj    =     600/800            arctan (600/800) = 36 .9 degrees

 Jan 31, 2019
 #2
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Thx so much. I couldn't figure it out.

Guest Jan 31, 2019
 #3
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You're welcome....good luck with Physics !     cheeky

ElectricPavlov  Jan 31, 2019
 #4
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For displacement, I was told to subtract the final position - the initial position. 

 

Doing that I got

 

-200km North

Guest Jan 31, 2019
edited by Guest  Jan 31, 2019
edited by Guest  Jan 31, 2019
 #5
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Not sure who told you that, but it is incorrect.....sorry cheeky

 

 

Hypothetical example:   IF you move 800 east  and then   400 west THEN your displacement would be 800 - 400 = 400       This ONLY works with displacements along a LINE.

ElectricPavlov  Jan 31, 2019
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Thx. I almost messed that up really bad.

Guest Jan 31, 2019

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