Kinetic Energy and Collision Question

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SUMMARY

The maximum kinetic energy (KE) lost during a collision between two objects is determined by the initial kinetic energy of the system. Momentum conservation is a key principle, ensuring that the center of mass continues at the same velocity. Maximum KE loss occurs when two objects coalesce, while in glancing collisions, the loss is contingent upon the alignment of their velocity components along the line of contact. Irregular shapes and rotational energy further complicate the analysis of energy transfer in collisions.

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  • Understanding of basic physics principles, specifically kinetic energy and momentum conservation.
  • Familiarity with collision types, including elastic and inelastic collisions.
  • Knowledge of vector components and their role in collision dynamics.
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  • Research the principles of elastic and inelastic collisions in detail.
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bebop1
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Is there a threshold of maximum kinetic energy lost when kinetic energy is transferred between two objects through collision?

I just cannot find any information on this, any help would be VERY much appreciated.
 
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Welcome to PF;
How much kinetic energy did the system start with?
That is the maximum that can be lost.
 
bebop1 said:
Is there a threshold of maximum kinetic energy lost when kinetic energy is transferred between two objects through collision?

I just cannot find any information on this, any help would be VERY much appreciated.
Momentum must be conserved. Their common mass centre therefore continues at the same velocity. Maximum KE loss occurs when they coalesce.
If it is a glancing blow, and the masses are not sticky, then their velocities parallel to the plane of contact will not change. Maximum KE loss when will be when their velocity components along the line of contact become the same.
If they are irregular shapes and the blow is glancing, it gets complicated since some of the energy may turn into rotational energy, so it depends whether you count that as conserved or lost.
 
There is also the case when a blob of wet clay collides with a fixed wall and sticks...
 
Simon Bridge said:
There is also the case when a blob of wet clay collides with a fixed wall and sticks...
Are you saying I did not cover that?
 

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