Biomechanics Quiz Questions set 3.txt

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Anonymous
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237618
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Biomechanics Quiz Questions set 3.txt
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2013-09-29 01:16:53
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  1. "The sum of joint forces that the body must absorb when slowing down is equal in magnitude and oppositely directed to the external forces tat slow the body down" is an interpretation of...
    action - reaction principle
  2. Which of the following external forces slow the body down when it contacts the ground after a jump?
    two ground reaction forces (one vertical and one horizontal)
  3. Based on the "Linear Impulse - Momentum Principle" which of the following describes "a change in factor" that would decrease the vertical ground reaction force when landing after a jump?
    a decrease in the mass (m) of the body

    and/or

    a decrease in the linear speed (s) of landing

    and/or

    an increase in the application time (t) of the vertical ground reaction force
  4. Thinking Question: A soft foam pit is used for landing after a high jump in track and field. According go the linear impulse-momentum relationship, the foam put reduces the impact force by...
    decreasing the vertical ground reaction force when landing.

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