Results 1 to 2 of 2

Math Help - need help with calc implicit differentiation word problems (due very soon!!)

  1. #1
    Newbie
    Joined
    Oct 2010
    Posts
    1

    need help with calc implicit differentiation word problems (due very soon!!)

    A particle is moving along the curve y = 3 √{3 x + 1}. As the particle passes through the point (1, 6), its x-coordinate increases at a rate of 5 units per second. Find the rate of change of the distance from the particle to the origin at this instant.

    and

    Gravel is being dumped from a conveyor belt at a rate of 20 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always equal to each other. How fast is the height of the pile increasing when the pile is 10 feet high?
    Hint: The volume of a right circular cone with height h and radius of the base r is given by V = [1/3] πr2 h.


    idk what to do for the first one after getting derivative of y. and for the second one i get 1.2something but it says its wrong please help
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by needhelpnao View Post
    A particle is moving along the curve y = 3 √{3 x + 1}. As the particle passes through the point (1, 6), its x-coordinate increases at a rate of 5 units per second. Find the rate of change of the distance from the particle to the origin at this instant.

    and

    Gravel is being dumped from a conveyor belt at a rate of 20 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always equal to each other. How fast is the height of the pile increasing when the pile is 10 feet high?
    Hint: The volume of a right circular cone with height h and radius of the base r is given by V = [1/3] πr2 h.


    idk what to do for the first one after getting derivative of y. and for the second one i get 1.2something but it says its wrong please help
    Please read rule #6: http://www.mathhelpforum.com/math-he...ng-151418.html

    Thread closed.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. word problem using implicit differentiation
    Posted in the Calculus Forum
    Replies: 2
    Last Post: February 16th 2010, 10:41 AM
  2. Calc Implicit Differentiation Problem?
    Posted in the Calculus Forum
    Replies: 4
    Last Post: January 1st 2010, 08:05 PM
  3. Replies: 3
    Last Post: November 11th 2009, 01:39 PM
  4. Implicit differentiation word problem
    Posted in the Calculus Forum
    Replies: 0
    Last Post: October 19th 2008, 01:54 PM
  5. Replies: 4
    Last Post: October 8th 2008, 05:09 PM

Search Tags


/mathhelpforum @mathhelpforum