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-   -   Iit-viii class (https://www.askmehelpdesk.com/showthread.php?t=506601)

  • Sep 11, 2010, 12:37 AM
    bpbabu
    IIT-VIII class
    An athelete completes one round of a circler track of radius R in 40S. The displacement of the athelete at the end of 20 min 20s is
  • Sep 11, 2010, 12:50 AM
    Unknown008

    First, find the speed of the athlete.

    Second, find the distance the athlete has covered in 20 min 20 s.

    Then, make a quick sketch of the track, and find the displacement from the starting point to his position at time 20 min 20 s. You should make use of angles here and probably use the cosine rule as well. Can you solve it?
  • Sep 15, 2010, 05:31 AM
    bpbabu
    Comment on Unknown008's post
    Thank you very much for giving solution about the problem

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