What is the total displacement?

  • #1

Homework Statement


So there are two rhinos chasing each other back and forth, Asha and her dad. What is Asha's total displacement at each point in increasing order(least to greatest)?[/B]
Asha's velocity is represented by II and her position at A:30, B:25, C:22, D:25, E:37.


Homework Equations




The Attempt at a Solution


Initially, I didn't realize that displacement has direction, so I put A, B, D, E, C based on the differences of her position from her initial position at 30. My friend pointed out that direction matters so logically, it should be C,B,D,A,E; however, she put that and it was wrong. She asked around and someone that put A,B,C,D,E got 2.4/3pts which, indicating each correct letter is 0.6 points. The girl that got the fully correct answer put A, B, D, C, E.

I just want to know, the reasonable answer is C, B, D, A, E, right?
 

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Answers and Replies

  • #2
CWatters
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The displacements from the starting position are:

A = 0
B = -5
C = -8
D = -5
E = +7

The girl that got the fully correct answer put A, B, D, C, E.
Are you sure that was the correct answer?
 
  • #3
The displacements from the starting position are:

A = 0
B = -5
C = -8
D = -5
E = +7



Are you sure that was the correct answer?
It turns out that the question was graded incorrectly so my friend was right about the answer being CBDAE
 

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