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blackstreet23

  • one year ago

Which of Juliette's statements is not a true statement about a position vs. time graph? 1- "A steeper slope means a higher average velocity (faster motion)." 2- "A horizontal line has zero slope. Therefore, a horizontal line on the position vs. time graph means that the average velocity is zero." 3- "The sign of the slope gives the sign of the average velocity and, therefore, the direction of motion." 4- "A horizontal line has infinite slope. Therefore, a horizontal line on the position vs. time graph means that the average velocity is zero."

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  1. blackstreet23
    • one year ago
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    @Shalante

  2. blackstreet23
    • one year ago
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    I am doing my physics homework right now

  3. blackstreet23
    • one year ago
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    I know the 4th one makes no sense. I mean a horizontal slope does not mean that it is infinite

  4. blackstreet23
    • one year ago
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    it means 0 slope. But some others make no sense either

  5. blackstreet23
    • one year ago
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    @abhisar

  6. blackstreet23
    • one year ago
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    But could you explain to me why it could not be the other ones? It is just they are confusing :/

  7. blackstreet23
    • one year ago
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    Did you erase it?

  8. anonymous
    • one year ago
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    I got confused. I did not read it correctly.

  9. blackstreet23
    • one year ago
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    ohh ok no problem :)

  10. blackstreet23
    • one year ago
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    so that one is false too?

  11. blackstreet23
    • one year ago
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    It asks me for the statement that is not true

  12. anonymous
    • one year ago
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    Oh no wonder I was confused because I know that A and B are true. C might be true.

  13. anonymous
    • one year ago
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    D is obviously false. A horizontal line always have a slope of zero.

  14. anonymous
    • one year ago
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    The question should be phrased "Which of Julitte statement is false?" instead

  15. anonymous
    • one year ago
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    I saw a true lol and I thought it was asking for true.

  16. blackstreet23
    • one year ago
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    So D is false?

  17. anonymous
    • one year ago
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    Yea thats what I said.

  18. blackstreet23
    • one year ago
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    yuhu! yeah that was the correct one !

  19. blackstreet23
    • one year ago
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    but could you explain to me why the other ones are false?

  20. blackstreet23
    • one year ago
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    i mean true, sorry

  21. anonymous
    • one year ago
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    Yes. "The sign of the slope gives the sign of the average velocity and, therefore, the direction of motion." |dw:1442024369802:dw|

  22. anonymous
    • one year ago
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    Average velocity formula vf-vi/2 If slope is decreasing vf would be less than vi. A (lesser number - greater number)/2= negative number Slop decreasing is a negative number and so does the average velocity.

  23. anonymous
    • one year ago
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    |dw:1442024673281:dw| V=d/t V=0/10 V=0

  24. Abhisar
    • one year ago
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    |dw:1442027405040:dw|

  25. Abhisar
    • one year ago
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    When the the curve is horizontal angle x=0 and hence tan 0 = 0. Therefore velocity which is equal to the slope of position-time graph is also zero.

  26. blackstreet23
    • one year ago
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    Thanks a lot to take the time to answer me!

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