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Fuel consumption of motor

  1. Sep 19, 2007 #1
    1. The problem statement, all variables and given/known data

    I posted int he other section but not sure if that area was a bit high maths

    I have this questions an answer to it would be great.
    .Q.1 At t minutes after an engine starts, the rate of fuel consumption is Rkg per minute. it is given by R=10+ 10/2t+1.

    a) Sketch R as a function of t

    b) find the rate of consumption after 7 mins

    c) find the limiting value of R as t becomes very large

    d) calculate the total consumption in the 1st 7 mins

    not sure how to do it
    Thank You

    2. Relevant equations



    3. The attempt at a solution

    I can do part 2
     
  2. jcsd
  3. Sep 19, 2007 #2

    EnumaElish

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    You must show an attempt, although it may be something very basic.
     
  4. Sep 19, 2007 #3

    HallsofIvy

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