What is the resultant displacement of John on the interstate highway?

AI Thread Summary
John's resultant displacement from the 244 km marker is -65 km after he travels to the 145 km marker and then to the 179 km marker. The calculation involves determining the difference between his final and initial positions. The initial position is 244 km, and after retracing his path, he ends up at 179 km. Therefore, the displacement is calculated as 179 km - 244 km, resulting in -65 km. This indicates that John is 65 km behind his starting point.
bigzee20
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Hi everyone my first post! Iam stuck in this problem idk if iam getting the answer right. My solution was 133 is this correct? Thanks for your help.

Homework Statement


While John is traveling along a straight interstate highway, he notices that the mile marker reads 244 km. John travels until he reaches the 145 km marker and then retraces his path to the 179 km marker.
What is John's resultant displacement from the 244 km marker? Answer in units of km.


Homework Equations





The Attempt at a Solution

 
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Can anyone help me please?
 
This has to do with vector addition.

The easiest way to do this problem would be to compare the starting and ending points. The answer you're trying to find is the difference between final position and initial position.
 
I got it man is -65. THANKS! I really appreciate it let's c if i don't get stuck in any other questions lol.
 
No problem
 

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