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Homework Help: The Change in velocity and direction.

  1. Sep 24, 2010 #1
    1. The problem statement, all variables and given/known data
    What is the acceleration of a bullet that was shot at 40.m/s in the horizontal and then changed to a velocity of 44.5m/s at 26.1* below the horizontal in a time of 2.0 seconds.

    2. Relevant equations

    vf-vi= delta v a= delta v / time

    3. The attempt at a solution

    I have tried to solve using head to tail diagram and i ended up 41m/s2. I am not entirely sure of this answer, and I have a test next morning on this.
     
  2. jcsd
  3. Sep 24, 2010 #2

    Doc Al

    User Avatar

    Staff: Mentor

    That's not correct. Show how you got that result.
     
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