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Work Power energy problem

  1. Sep 3, 2013 #1
    Hi friend please help me in solving this issue.
    Thank you all in advance.

    The problem is as such:
    [Broken]

    Attempt to the problem:

    [Broken]

    [Broken]

    But the book says answer of the question is option (A)
     
    Last edited by a moderator: May 6, 2017
  2. jcsd
  3. Sep 3, 2013 #2
    You did almost everything correctly, but made a mistake solving the equations for acceleration.
     
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