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nath

please help with...

  • 2 years ago
  • 2 years ago

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  1. nath
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    • 2 years ago
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  2. Hunus
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    Just add the components of all of the vectors to find the resultant displacement. First he moves 2.6 km north, then he moves 4 km east then he moves 3.1 km north east.

    • 2 years ago
  3. PeterAntimatter
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    Okay Nath what is it about this problem that is confusing to you?

    • 2 years ago
  4. Hunus
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    The first displacement he moves 2.6 km but he has no horizontal displacement. The second displacement he moves 4 km which is all horizontal. The third displacement he moves 3.1 km which is only part horizontal (You should be able to figure out the horizontal component from the last post)

    • 2 years ago
  5. nath
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    x=5.7 cos(45) i added the 2.6 to 3.1

    • 2 years ago
  6. Hunus
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    Not quite. For the x component 2.6 wouldn't be a part of it because none of it is in the x direction

    • 2 years ago
  7. nath
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    you mean that 3.1 is not completely horiziontal

    • 2 years ago
  8. Hunus
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    Yes. Also, the component that is 2.6 km is all in the y direction so none of it will be on the x component

    • 2 years ago
  9. nath
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    so what do i have to do

    • 2 years ago
  10. Hunus
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    |dw:1329698312156:dw|

    • 2 years ago
  11. Hunus
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    How far did the truck travel along the x axis?

    • 2 years ago
  12. nath
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    4

    • 2 years ago
  13. Hunus
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    What about the 3.1 km he traveled north east? Part of that displacement is along the x axis.

    • 2 years ago
  14. nath
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    i know to find the x component it would be 3.1 cos(45)

    • 2 years ago
  15. Hunus
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    That's correct :) and that plus the 4 km is how far he moved along the x axis

    • 2 years ago
  16. nath
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    so i could add the 2.6 to the 3.1 because the 2.6 is completely horizontal while the 3.1 is partially horizontal. however i have to take it into account

    • 2 years ago
  17. nath
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    i mean i couldnt*

    • 2 years ago
  18. Hunus
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    The 2.6 is completely vertical. The 4.0 is completely horizontal

    • 2 years ago
  19. nath
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    yah

    • 2 years ago
  20. Hunus
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    So add up the horizontal parts :)

    • 2 years ago
  21. Hunus
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    I'm about to have to head out :/ sorry I couldn't help you finish the problem. Just add up all the x components of all the vectors and all the y components of the vectors and this will create a new vector with the x component you just calculated and the y component you just calculated.

    • 2 years ago
  22. nath
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    okay thank u so much

    • 2 years ago
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