Derivation of Impulse and Momentum

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Homework Help Overview

The discussion revolves around deriving the relationship between kinetic energy and momentum, specifically expressing kinetic energy as KE = p^2/2m. The subject area is classical mechanics, focusing on the concepts of kinetic energy and momentum.

Discussion Character

  • Exploratory, Conceptual clarification

Approaches and Questions Raised

  • The original poster expresses uncertainty about how to begin the derivation, noting a connection between momentum and velocity. Participants question the definition of momentum and suggest expressing velocity in terms of momentum.

Discussion Status

The discussion is in an exploratory phase, with participants providing definitions and suggesting approaches without reaching a consensus or resolution. Some guidance has been offered regarding the relationship between momentum and velocity.

Contextual Notes

The original poster indicates a lack of clarity on how to derive the desired equation, which may suggest constraints in their understanding of the underlying concepts.

IncognitoSOS
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Show that the kinetic energy of an object can be written in terms of the momentum as
KE = p^2/2m.


Homework Equations



KE = 1/2MV^2

The Attempt at a Solution


To be honest, I don't know where to even start with this problem. It equals PV/2 but I still need to find a way to derive p^2/2m
 
Physics news on Phys.org
What's the definition of p?
 
p=mv
 
IncognitoSOS said:
p=mv
Now write v in terms of p and make use of it.
 

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