How is Impulse Calculated in a Collision with Changing Velocities?

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    Impulse Momentum
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Homework Help Overview

The discussion revolves around calculating impulse in collision scenarios involving changing velocities, specifically an aircraft being struck by a meteor and a ball colliding elastically with another ball. The participants are exploring the implications of velocity changes and energy transfer in these contexts.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants are questioning the expression of velocities in vector form and discussing the application of the impulse formula. There is an emphasis on understanding the problem statements and the need for showing effort in problem-solving.

Discussion Status

The discussion is in an early stage, with participants encouraging the original poster to clarify their understanding and provide more context. Some guidance has been offered regarding the impulse equation, but no consensus or resolution has been reached yet.

Contextual Notes

There is a note regarding the need for the original poster to follow forum guidelines by demonstrating their attempts at solving the problems before receiving help.

Aprizal
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Homework Statement


1. An Aircraft Space 1000 kg moving with speed
(2000 i m / s). A meteor strikes the plane so that
speed become (2000 i + 2000 j m / s). how impulses
collision?
2. A 0.5 kg ball collides with the ball perfectly Resilience
The second is silent. The second ball away with
half speed the initial speed the ball. What percentage of the kinetic energy
transferred to the second ball ?

Homework Equations


1. I=m(V2-V1)
2. KE=KE'
[/B]

The Attempt at a Solution

 
Last edited:
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Hi and welcome to PF!

These are merely problem statements. If you read the guidelines for posting homework problems, you will find that they require you to show effort before we can help you (i.e., also fill in items #2 and #3 in the template that you used). If we do not know where you got stuck, it will be much more difficult for us to give you the appropriate help and we are not allowed to simply solve the problem for you. Instead, we will gladly point you in the right direction so that you can solve the problem yourself.
 
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Orodruin said:
Hi and welcome to PF!

These are merely problem statements. If you read the guidelines for posting homework problems, you will find that they require you to show effort before we can help you (i.e., also fill in items #2 and #3 in the template that you used). If we do not know where you got stuck, it will be much more difficult for us to give you the appropriate help and we are not allowed to simply solve the problem for you. Instead, we will gladly point you in the right direction so that you can solve the problem yourself.
okay,, I'm first in PF and I'm sorry for that. I will change my post.
 
Aprizal said:
okay,, I'm first in PF and I'm sorry for that. I will change my post.

Dont worry, it is very common that this happens for first posters and your attitude to the guidelines is already better than some I have seen.
 
speed (2000 i m / s). A meteor strikes the plane so that
speed become (2000 i + 2000 j m / s)
@Aprizal: Can you explain what is meant by this way of expressing the velocities?
 
Aprizal said:
I=m(V2-V1)

So you now have this relevant equation. Have you tried applying this equation to your problem?
 

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