Which of the following statements must be true to decrease horizontal velocity during walking?
a. The horizontal velocity is positive and no net horizontal force is applied
b. The net horizontal impulse is positive in the direction you are walking
c. The net vertical impulse is positive in the direction you are walking
d. The sum of the horizontal forces is positive in the direction you are walking
e. None of the above
Answer: e
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Biomechanics
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