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natasha.aries

  • 3 years ago

a man running on a straight path at 3 meters per second accelerates uniformly to a speed of 5.23 meters per second in 9.65 seconds. What is the total distance traveled? What formula can i use?

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  1. VeritasVosLiberabit
    • 3 years ago
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    \[x _{f}=x _{i}+v _{1}\Delta t+\frac{ 1 }{ 2 }a \Delta t ^{2}\]

  2. natasha.aries
    • 3 years ago
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    whats a?

  3. VeritasVosLiberabit
    • 3 years ago
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    a would be the acceleration.

  4. natasha.aries
    • 3 years ago
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    what would it be in this case though? like what number?

  5. VeritasVosLiberabit
    • 3 years ago
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    Actually the first equation you should use is this one \[v _{f}=v _{i}+a \Delta t\]

  6. VeritasVosLiberabit
    • 3 years ago
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    this will help you compute your acceleration.

  7. natasha.aries
    • 3 years ago
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    ohh so first we solve for acceleration and then plug it into the other formula?

  8. VeritasVosLiberabit
    • 3 years ago
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    then you could actually just use the formula \[v _{f}^{2}=v _{i}^{2}+2a \Delta x\] and compute the total distance.

  9. VeritasVosLiberabit
    • 3 years ago
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    so you actually won't even need the first formula, so you can disregard it.

  10. natasha.aries
    • 3 years ago
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    what did u end up getting for acceleration because i got 4 and then did the problem and got it wrong..

  11. VeritasVosLiberabit
    • 3 years ago
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    the answer is not 4.

  12. natasha.aries
    • 3 years ago
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    just kidding!

  13. natasha.aries
    • 3 years ago
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    i got it! haha i divided wrong

  14. VeritasVosLiberabit
    • 3 years ago
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    you should setup the problem and show me how you did it. but the answer came out to be 39.7

  15. VeritasVosLiberabit
    • 3 years ago
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    ok good job :)

  16. natasha.aries
    • 3 years ago
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    lol yeah i figured it out haha i have some more questions and i dont know what formulas to use and i have my test tomorrow, would u mind helping me out?

  17. natasha.aries
    • 3 years ago
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    i dont mind reposting it so i could give u the best answer but would u mind helping me?

  18. VeritasVosLiberabit
    • 3 years ago
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    sure. could you make a new thread for it though? This one is cluttered now.

  19. natasha.aries
    • 3 years ago
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    yes! no problem! gracias

  20. VeritasVosLiberabit
    • 3 years ago
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    de nada

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