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lgbasallote Group Title

An OpenStudy user's speed is 40 medals per day and his acceleration is 2 medal/day^2. If it takes 4,500 medals to reach the Legend rank, how many days will it take for him to reach the rank?

  • 2 years ago
  • 2 years ago

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  1. javawarrior Group Title
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    lol in first

    • 2 years ago
  2. Tomas.A Group Title
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    wrong group

    • 2 years ago
  3. lgbasallote Group Title
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    isnt it math?

    • 2 years ago
  4. joemath314159 Group Title
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    What is his/her initial medalage? does he/she start from 0?

    • 2 years ago
  5. Tomas.A Group Title
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    physics

    • 2 years ago
  6. lgbasallote Group Title
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    yup 0

    • 2 years ago
  7. lgbasallote Group Title
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    but isnt this an ordinary math problem too?

    • 2 years ago
  8. lgbasallote Group Title
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    i mean the basic concepts still come in play

    • 2 years ago
  9. javawarrior Group Title
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    its both, physics and math.Arguably physics is nothing without math though :)

    • 2 years ago
  10. lgbasallote Group Title
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    lol can we just teach me how to solve this? :p

    • 2 years ago
  11. javawarrior Group Title
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    well first of all, his acceleration cant be 2 medals/day a = v / t since you postulated that v = 40 per day a = 40 per day because a = delta V / delta t

    • 2 years ago
  12. lgbasallote Group Title
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    but my book says 50 days o.O

    • 2 years ago
  13. joemath314159 Group Title
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    I would consider it an initial velocity. Its like saying a car is going at 40 ft/s, and accelerating at 2 ft/s^2.

    • 2 years ago
  14. lgbasallote Group Title
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    yeah that'swhat i think too

    • 2 years ago
  15. joemath314159 Group Title
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    To solve the problem use the formula:\[d = x_0+v_0t+\frac{1}{2}at^2\]Set d to 4500, intial position to 0, intiial velocity to 40, and acceleration to 2. Solve for t.

    • 2 years ago
  16. lgbasallote Group Title
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    so 4500 = 40t + t^2?

    • 2 years ago
  17. joemath314159 Group Title
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    yep

    • 2 years ago
  18. lgbasallote Group Title
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    hmm yep i think that gives 50thanks

    • 2 years ago
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