Vector resultant help

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02drai
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Help please on vector. I have scanned my answer and question.

Thanks
 
Attachments
  • Handwritten sketch of a square-like quadrilateral with corners A, B, C and D, each with a 5 m/s arrow. Below it, handwritten working: A = 0, B = √(5²+5²) = √50 = 7.07, C = √(7.07²+7.07²) = √100 = 10, then asks why the resultant at D is 7.07.
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  • Textbook exercise showing a red mountain bike with its rear wheel, labelled points A, B, C and D, and blue velocity arrows of 5 m s-1 at each point, with the question text above.
    q.jpg
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Hi 02drai :smile:

Before we deal with D, I'm worried about your answers for C and B …

C = √(7.072 + 7.072) = √(50 + 50) = 10 …

yes 10 is correct, but how did you get it? :confused:

And can you please also say how you got B (yes, it's right too), since if you got it the right way, you should know how to get D.
 
tiny-tim said:
Hi 02drai :smile:

Before we deal with D, I'm worried about your answers for C and B …

C = √(7.072 + 7.072) = √(50 + 50) = 10 …

yes 10 is correct, but how did you get it? :confused:

And can you please also say how you got B (yes, it's right too), since if you got it the right way, you should know how to get D.

What i did was to find resultant from AB was just pythagoras. I have got answer and i tried to put logical equation. However, why i get idea that the resultant should be same for all point since they are all relative to eaxh other.