Standard pitcher's arm acceleration while throwing

Discussion in 'General Electronics Chat' started by Johnny1010, Aug 29, 2016.

  1. Johnny1010

    Thread Starter Member

    Jul 13, 2014
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    For a standard base ball pitch what is the range of pitcher's arm acceleration while throwing I am trying to get it with accelerometer and I am getting 80 ms-2?
     
  2. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
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  3. Bernard

    AAC Fanatic!

    Aug 7, 2008
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    Sounds about right for a slow pitch. My take is 34 ms, 18 in forearm, 90 deg. of acceleration, 90 MPH pitch.
     
  4. wayneh

    Expert

    Sep 9, 2010
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    8G seems reasonable, without any calculations, just intuition.
     
  5. Johnny1010

    Thread Starter Member

    Jul 13, 2014
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  6. wayneh

    Expert

    Sep 9, 2010
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    Well, I was doing a back of the napkin calculation and came up with ~50G. I didn't put it in my post because I didn't have time to verify it.

    My approach was to guess the distance over which the ball is accelerated (maybe 6? feet, probably more for a pro) and the final velocity (90mph or 132 ft/sec) and then just calculate what the average acceleration had to be, assuming it was constant.

    60G at the shoulder seems unlikely to me.
     
  7. BobTPH

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    Jun 5, 2013
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