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anonymous

  • one year ago

A particle moves on a line away from its initial position so that after t hours it is s = 6t^2 + 2t miles from its initial position. Find the average velocity of the particle over the interval [1, 4]. Include units in your answer.

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  1. anonymous
    • one year ago
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    okay so this is what i got (s(4) - s(1))/(4-1) = the average ? does that look right to you guys?

  2. jtvatsim
    • one year ago
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    That setup looks right. All it needs now are numbers to finish it off. :)

  3. anonymous
    • one year ago
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    okay great thats all i needed, to know wasn't sure if the order was correct :)

  4. jtvatsim
    • one year ago
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    Yep, you take the last point of the interval minus the first point of the interval usually. This just comes from our intuitive response to questions like "What is the difference between 1 and 5"? Well, 4, that is, 5 - 1. :)

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