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: Related Rates (differentiating)

  1. Apr 10, 2008 #1
    1. The problem statement, all variables and given/known data
    How fast is the area of a square increasing when the side is 3 meters in length and growing at a rate of 0.8meter/minute?

    2. Relevant equations

    3. The attempt at a solution

    I have no clue how to start this and I'm bad at word problems.
  2. jcsd
  3. Apr 10, 2008 #2
    Wrong formula, find the correct formula and we'll proceed.
  4. Apr 10, 2008 #3


    User Avatar
    Science Advisor
    Homework Helper

    It's not really wrong, if it's square then just set W=L. So SA=L^2. Now we can proceed, right?
  5. Apr 11, 2008 #4
    Eh, I can somewhat agree ... but I still assume OP didn't realize W=L :p (noticing in the post, L=3)
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook