Force (N) 6000 5000 4000 3000 2000 1000 0 DA 0 21 Time (s) a. What is the mass of the subject (roughly)?

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Chapter1: Units, Trigonometry. And Vectors
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Utilize the graph of a countermovement vertical jump for peak height and answer the following questions.
Force (N)
6000
5000
4000
3000
2000-
1000
0-
0
2
Time (s)
a. What is the mass of the subject (roughly)?
Transcribed Image Text:Utilize the graph of a countermovement vertical jump for peak height and answer the following questions. Force (N) 6000 5000 4000 3000 2000- 1000 0- 0 2 Time (s) a. What is the mass of the subject (roughly)?
b. The subject remains stationary for the first 0.75 seconds. After this they apply an average vertical GRF of
500 Newtons over a time of 0.3 seconds to initiate their movement down. What is the net impulse during
this time period?
c. What is the velocity at the end of this 0.3 seconds?
d. After this initial movement down, what is direction is their acceleration (positive or negative) to ensure
that they stop at the bottom of their countermovement AND what is the value of the GRF necessary for
this to start occurring?
e. If the time to the heal hitting the ground, second loading peak, is 0.1 second, what is the loading rate to
that peak?
Transcribed Image Text:b. The subject remains stationary for the first 0.75 seconds. After this they apply an average vertical GRF of 500 Newtons over a time of 0.3 seconds to initiate their movement down. What is the net impulse during this time period? c. What is the velocity at the end of this 0.3 seconds? d. After this initial movement down, what is direction is their acceleration (positive or negative) to ensure that they stop at the bottom of their countermovement AND what is the value of the GRF necessary for this to start occurring? e. If the time to the heal hitting the ground, second loading peak, is 0.1 second, what is the loading rate to that peak?
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