1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: 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


    User Avatar
    Science Advisor
    Homework Helper

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


    User Avatar
    Science Advisor

Share this great discussion with others via Reddit, Google+, Twitter, or Facebook