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rdrlr

How to find the area under this curve?

  • one year ago
  • one year ago

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  1. rdrlr
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    A bicyclist pedals along a straight road with velocity, v, given in the figure below. She starts 3 miles from a lake; positive velocities take her away from the lake and negative velocities take her toward the lake. http://i.imgur.com/lhJQd.png Approximately how far away is she at this time? Give a best estimate.

    • one year ago
  2. rdrlr
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    The time is one hour...

    • one year ago
  3. wio
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    just count the number of squares

    • one year ago
  4. tkhunny
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    Please define "under". That first 20 is troublesome.

    • one year ago
  5. rdrlr
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    It includes both the negative and positive velocities, so not exactly under for both

    • one year ago
  6. rdrlr
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    0 is the x axis of course

    • one year ago
  7. wio
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    They basically want you to count squares here.

    • one year ago
  8. rdrlr
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    That seems too simple. What would be the units I would use?

    • one year ago
  9. wio
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    The count the number of square when it is above, and subtract from the the number of square when it is below.

    • one year ago
  10. wio
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    The square is 10mph time is 1 h So the result is 10 miles for each square

    • one year ago
  11. wio
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    Keep it simple, they asked for an approximation.

    • one year ago
  12. rdrlr
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    What should I do for the squares that aren't whole?

    • one year ago
  13. rdrlr
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    It seems a bit tricky go guess

    • one year ago
  14. wio
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    if you want to make it more complicated, then just roughly estimate how much of a square it is.

    • one year ago
  15. rdrlr
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    Okay, I will try my best to approximate it. Thank you

    • one year ago
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