Answered: Still Push-off Landing Still F (N) In…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Researchers often use force plates to measure the forces that people exert against the floor during movement. A force plate works like a bathroom scale, but it keeps a record of how the reading changes with time. Shown is the data from a force plate as a woman jumps straight up and then lands.
a. What was the vertical component of her acceleration during push-off?
b. What was the vertical component of her acceleration while in the air?
c. What was the vertical component of her acceleration during the landing?
d. What was her speed as her feet left the force plate?
e. How high did she jump?

Still
Push-off
Landing
Still
F (N)
In air
1500 -
1000 -
500
t (s)
0.25 s
FIGURE P5.72

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