What is the Relationship Between the Two Impulses in a Vertical Jump?

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SUMMARY

The discussion centers on the relationship between the two impulses involved in a countermovement jump: the downward impulse during preparation and the upward impulse during take-off. It is established that the take-off and landing impulses are equal in magnitude but opposite in direction, assuming no air resistance and consistent posture. The conversation emphasizes the importance of understanding these impulses for analyzing vertical jump mechanics.

PREREQUISITES
  • Understanding of basic physics concepts such as impulse and momentum.
  • Familiarity with vertical jump mechanics and biomechanics.
  • Knowledge of graphing techniques for visualizing impulse versus time.
  • Experience with countermovement jump techniques and their analysis.
NEXT STEPS
  • Research the physics of impulse and momentum in sports science.
  • Learn how to graph impulse versus time using software like MATLAB or Python.
  • Explore biomechanics of vertical jumps, focusing on countermovement jump analysis.
  • Study the effects of posture on jump performance and impulse generation.
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Athletes, coaches, sports scientists, and biomechanics researchers interested in optimizing vertical jump performance and understanding the underlying physics of jumping mechanics.

gopi9
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Hi

If a person jumps(countermovement jump) then there would be 2 impulses that is the 1st impulse would be when person sits down, getting ready to jump and the 2nd impulse would be when he jumps back on to the ground.
1)I want to know the relationship between these 2 impulses.
2) How can we compare these 2 impulses??
3)Can we plot graph for these 2 impulses versus time?
 
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I am not from physics background. I am very good at these stuff.
So please help me
 
Your question is not very clear. What is a "countermovement" jump?
In your two impulses, you left out the most obvious - the take-off. Let's just compare take-off and landing.
Ignoring air resistance, and assuming the same posture for the instant of take-off and the instant of landing, the take-off and landing speeds will be the same. It follows that the momenta (impulse) will be the same, just in opposite directions.
 

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