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Finding deceleration of a ball?

  1. Apr 27, 2016 #1
    1. The problem statement, all variables and given/known data
    How to find deceleration of a ball that is hit, given the ball:
    mass=0.1kg
    F=20N
    is hit by a bat for 0.01s
    has an acceleration of 200ms^-2 when hit by bat
    speed=2m per sec
    travels 0.01m as it is being hit by the bat
    Was initially at rest.


    2. Relevant equations
    a=(v-u)/t

    3. The attempt at a solution
    Using the acceleration formula, I had swapped the positions of u and t, resulting in -200ms^-2, which is wrong. The answer is 2ms^-2, and I am not sure how to go about this. Please help me in getting this qu started!! Thank you!!
     
    Last edited: Apr 27, 2016
  2. jcsd
  3. Apr 27, 2016 #2

    DrClaude

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    Staff: Mentor

    I'm nit sure I understand the problem. What is the initial state of the ball before being hit?
     
  4. Apr 27, 2016 #3
    The ball was at rest, and then it was hit by a bat.

    Sorry!! I will include it in the above now.
     
  5. Apr 27, 2016 #4

    DrClaude

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    Staff: Mentor

    Ok. And is the following information
    all given in the problem, or did you calculate some of those values?
     
  6. Apr 27, 2016 #5
    The mass, force, and time was given in the question, and the remainder I calculated.
    The ones I calculated are correct, when referring to the answers.
     
  7. Apr 27, 2016 #6

    DrClaude

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    Staff: Mentor

    This is muddled. Please always post the question as it is asked (that's the only thing that should appear in the first section of the template). I don't understand the deceleration that is mentioned.

    So, what exactly is the question being asked?
     
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