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

AI Thread Summary
In a countermovement jump, two key impulses occur: one when the jumper crouches down and another upon landing. The relationship between these impulses can be understood by comparing the take-off and landing phases, which exhibit equal speeds and momenta, but in opposite directions. The discussion emphasizes that the take-off impulse is often overlooked when analyzing the jump dynamics. A graph could potentially illustrate these impulses over time, though the original poster lacks a physics background. Understanding these impulses is crucial for analyzing vertical jump mechanics effectively.
gopi9
Messages
14
Reaction score
0
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?
 
Physics news on Phys.org
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.
 
Thread 'Is 'Velocity of Transport' a Recognized Term in English Mechanics Literature?'

Thread 'Is 'Velocity of Transport' a Recognized Term in English Mechanics Literature?'

Here are two fragments from Banach's monograph in Mechanics I have never seen the term <<velocity of transport>> in English texts. Actually I have never seen this term being named somehow in English. This term has a name in Russian books. I looked through the original Banach's text in Polish and there is a Polish name for this term. It is a little bit surprising that the Polish name differs from the Russian one and also differs from this English translation. My question is: Is there...
View full post »
Thread 'Beam on an inclined plane'

Thread 'Beam on an inclined plane'

Hello! I have a question regarding a beam on an inclined plane. I was considering a beam resting on two supports attached to an inclined plane. I was almost sure that the lower support must be more loaded. My imagination about this problem is shown in the picture below. Here is how I wrote the condition of equilibrium forces: $$ \begin{cases} F_{g\parallel}=F_{t1}+F_{t2}, \\ F_{g\perp}=F_{r1}+F_{r2} \end{cases}. $$ On the other hand...
View full post »

Similar threads

Standing jump on a spring platform
Replies
12
Views
2K
B Questions about momentum and force as well as normal force/friction
Replies
35
Views
4K
Vertical Wall approaching Man - Impulse and Momentum Conservation
Replies
10
Views
1K
Help with calculating vertical jump with kinematic equations
Replies
6
Views
5K
Strange acceleration graph during a jump
Replies
9
Views
5K
Physics of Jumping: How Force Affects Height
Replies
1
Views
7K
What is the difference between elastic and inelastic collisions?
Replies
1
Views
2K
At what speed can a person jump in zero g?
Replies
20
Views
3K
Why a man on the Moon can jump 21 times higher than on the Earth
2
Replies
76
Views
30K
Horizontal impulse on a ball at rest on a plane (with friction)
Replies
14
Views
3K

Hot Threads

Recent Insights

Back
Top