Results 1 to 4 of 4

Thread: Trying to find the length of a curve.

  1. February 12th 2010, 05:57 PM #1
    Davezerg
    Davezerg is offline
    Newbie
    Joined
    Feb 2010
    Posts
    2

    Trying to find the length of a curve.

    Hello everyone. I'm trying to find the length of a curve from the center line to the distance. I need to fit a bolt bar at 21" from the center line. I need to find the length of the curve in inches or degrees or both if possible. Theres a link below to a picture of what Im trying to do. Please help and thank you for your time.

    This is the formula I have: Distance divided by radius multiplied by sin multiplied by one degree.

    http://i815.photobucket.com/albums/z...ezerg/Sin1.jpg
    Follow Math Help Forum on Facebook and Google+
  2. February 12th 2010, 06:13 PM #2
    skeeter
    skeeter is offline
    MHF Contributor
    skeeter's Avatar
    Joined
    Jun 2008
    From
    North Texas
    Posts
    11,625
    Thanks
    426
    arclength ...

    s = r \cdot \theta

    s = 60 \cdot \arcsin\left(\frac{21}{60}\right) \approx 21.454 inches
    Follow Math Help Forum on Facebook and Google+
  3. February 13th 2010, 01:59 AM #3
    Davezerg
    Davezerg is offline
    Newbie
    Joined
    Feb 2010
    Posts
    2
    ok but 21" is not the length of the arc, its the distance from the center line to where I want to fit the bolt bars.
    Follow Math Help Forum on Facebook and Google+
  4. February 13th 2010, 06:20 AM #4
    skeeter
    skeeter is offline
    MHF Contributor
    skeeter's Avatar
    Joined
    Jun 2008
    From
    North Texas
    Posts
    11,625
    Thanks
    426
    Quote Originally Posted by Davezerg View Post
    ok but 21" is not the length of the arc, its the distance from the center line to where I want to fit the bolt bars.
    I know that. the length of the arc is 21.454 in
    Follow Math Help Forum on Facebook and Google+
« Question on trig equation | Inverse Trig functions- Find sin(arctanp+arctan1/p) if p>0 »

Similar Math Help Forum Discussions

  1. Find the length of the curve
    Posted in the Calculus Forum
    Replies: 4
    Last Post: April 29th 2010, 11:21 AM
  2. Find the length of the curve
    Posted in the Calculus Forum
    Replies: 1
    Last Post: December 6th 2009, 09:56 AM
  3. find length of curve
    Posted in the Calculus Forum
    Replies: 1
    Last Post: March 15th 2009, 05:55 PM
  4. Find length of the curve help
    Posted in the Calculus Forum
    Replies: 1
    Last Post: November 4th 2008, 10:15 PM
  5. Find the length of curve
    Posted in the Calculus Forum
    Replies: 5
    Last Post: June 15th 2008, 05:37 PM

Search Tags


/mathhelpforum @mathhelpforum