Kinetic Energy - use a log scale or not?

AI Thread Summary
The discussion revolves around determining whether to use a linear or logarithmic scale for comparing the kinetic energies of balls and eggs with equal mass but different velocities. The kinetic energy is calculated using the formula KE = 0.5*m*v², which indicates that energy increases non-linearly with speed. There is uncertainty about the specific goal of matching the kinetic energies and whether the distributions of velocities and energies for the balls and eggs are known. Participants suggest clarifying the problem's context and providing sample calculations to illustrate the approach. Ultimately, the choice of scale may depend on the specific requirements of the analysis and the nature of the data involved.
Luke_G
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Homework Statement


Lets say we have a series of balls and an eggs. All items have equal mass but are traveling at different velocities.

Thus they have differing kinetic energies.

Now, for each 'ball' object we have, we want to find an egg object with a similar kinetic energy. Let's say, within +-1 standard deviation interval

Would it be correct to take the kinetic energy as it is and use the linear interval of 1SD, or convert to the kinetic energy to a logarithmic scale

Homework Equations



KE = 0.5*m*v²

The Attempt at a Solution


My guess is to use a log scale as Kinetic energy does not increase linearly with speed
 
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I've never seen a physics problem like this. Is there any way you can be more specific in your description of the situation? Is this a textbook problem? Are you just trying to conduct an experiment? What exactly are the difficulties in finding the difference in kinetic energy of an egg and and that of a ball?
 
Luke_G said:
we want to find an egg object with a similar kinetic energy
What does that mean? Do you want the probability that there exists an egg object in that KE range? Or the expected fraction of eggs in that range? Or...?
Is the distribution of energies known?
Do the balls and eggs have the same distribution of velocities? Of energies?
(Do the balls and eggs all have the same masses?)
Luke_G said:
My guess is to use a log scale
Use a log scale for what, exactly? Maybe you could illustrate with a sample calculation.
 
Shouldn't you include the kinetic energy of the rotation of the objects?
 
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