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What is the force exerted on the hand by the blocks?

  1. Dec 3, 2003 #1
    can someone give me the formula needed to do this problem?

    "a karate strike hits wooden blocks, the hand undergoes an acceleration of -6500 m/s2. Medical data indicates the mass of the forearm and hand to be about 0.8 kg. What is the force exerted on the hand by the blocks?"

    am i supposed to convert kg into something else???
     
  2. jcsd
  3. Dec 3, 2003 #2

    chroot

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    How about Newton's second law of motion?

    - Warren
     
  4. Dec 3, 2003 #3

    HallsofIvy

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    In other words: Force= mass times acceleration!
     
  5. Dec 3, 2003 #4

    ROFLL!!!!!!! Next!
     
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