Results 1 to 2 of 2

Thread: differentiation: displacement given by the equation s= 2t^2 - t, t ≥ 0 minutes

  1. #1

    differentiation: displacement given by the equation s= 2t^2 - t, t ≥ 0 minutes

    Q1. An object moving along a straight line has its displacement, s metre, from a fixed point O, given by the equation s= 2t2 - t, t ≥ 0 minute.

    a) when this object is at rest, at what position and how far is it from O?


    b) determine the average velocity of this object in the first 3 minutes.

    c) determine the average acceleration of this object in the first 3 minutes.


  2. #2
    Elite Member
    Join Date
    Jun 2007
    Posts
    17,576
    Quote Originally Posted by benzema View Post
    Q1. An object moving along a straight line has its displacement, s metre, from a fixed point O, given by the equation s= 2t2 - t, t ≥ 0 minute.

    a) when this object is at rest, at what position and how far is it from O?

    What is the condition for subject at rest (as a function of s & t)?

    b) determine the average velocity of this object in the first 3 minutes.

    How do you get a function for 'v' from the function of 's(t)'?

    c) determine the average acceleration of this object in the first 3 minutes.

    How do you get a function for 'a' from the function of 's(t)'?


    What are your thoughts?

    Please share your work with us ...even if you know it is wrong

    If you are stuck at the beginning tell us and we'll start with the definitions.

    You need to read the rules of this forum. Please read the post titled "
    Read before Posting" at the following URL:

    http://www.freemathhelp.com/forum/th...Before-Posting
    ... mathematics is only the art of saying the same thing in different words - B. Russell

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •