4. Allie walks across a force platform, and the forces exerted by her foot during a step are recorded. The peak vertical reaction force is 1100 N (this force acts upward on Allie). At the same instant, the frictional force is 300 N (this force acts backward on Allie). Draw a free-body diagram of Allie's foot. b. How large is the resultant of these forces? c. What is the direction of the resultant? a.
4. Allie walks across a force platform, and the forces exerted by her foot during a step are recorded. The peak vertical reaction force is 1100 N (this force acts upward on Allie). At the same instant, the frictional force is 300 N (this force acts backward on Allie). Draw a free-body diagram of Allie's foot. b. How large is the resultant of these forces? c. What is the direction of the resultant? a.
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Transcribed Image Text:4. Allie walks across a force platform, and the forces
exerted by her foot during a step are recorded. The
peak vertical reaction force is 1100 N (this force acts
upward on Allie). At the same instant, the frictional
force is 300 N (this force acts backward on Allie).
Draw a free-body diagram of Allie's foot.
b. How large is the resultant of these forces?
c. What is the direction of the resultant?
a.
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