1. Not finding help here? Sign up for a free 30min 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!

About ticker-tape timer

  1. Dec 28, 2006 #1
    1. The problem statement, all variables and given/known data
    Refer to the uploaded file,
    Which of the following statements is/are correct?
    (1) The length of each tape represents the average velocity within the time interval.
    (2) The width of the tape represents the constant time interval.
    (3) Joining the centres of the tops of the tape gives a displacement-time graph.

    A (2) only
    B (3) only
    C (1) and (2) only
    D (1) and (3) only


    2. Relevant equations

    /

    3. The attempt at a solution

    The answer is C.
    But I don't understand why (1) is true.
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     

    Attached Files:

  2. jcsd
  3. Dec 28, 2006 #2

    cristo

    User Avatar
    Staff Emeritus
    Science Advisor

    Try uploading your image to imageshack.us, then post the link, since it may take a while for the attachment to be approved.
     
  4. Dec 28, 2006 #3
    speed=distance/time

    time=5 ticks=constant (for each column)

    distance=length of column

    so, if speed=avg velociy

    avg velocity=length of column*constant

    (note:constant=1/time)

    or more simply: avg velocity is proportional to length of column
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: About ticker-tape timer
  1. Ticker Timer help (Replies: 5)

  2. Ticker tape experiment (Replies: 2)

Loading...