Calculating Coefficient of Restitution for Two Solid Balls Colliding

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Homework Help Overview

The discussion revolves around calculating the coefficient of restitution (e) for a collision between two solid balls, with participants exploring the implications of their calculations and the underlying principles of elastic and inelastic collisions.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants share their calculated values for e, with some questioning the validity of these results based on the expected range of the coefficient of restitution. There is a focus on the reasoning behind the calculations and the application of the conservation of momentum equation.

Discussion Status

The discussion is active, with multiple participants providing different values for e and seeking clarification on the calculations. There is a mix of attempts to validate results and requests for detailed explanations of the methods used.

Contextual Notes

Some participants note the discrepancy in the calculated values of e, highlighting the importance of understanding the physical constraints of the coefficient of restitution, which should theoretically range from 0 to 1.

nysnacc
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Homework Statement


upload_2016-10-12_21-10-1.png


Homework Equations


MaVa1 + MaVb1 = MaVa2 +MaVb2

The Attempt at a Solution


I found Va2 = 2 m/s

e is found to be 1.75, correct?
 
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Please show your reasoning.
 
nysnacc said:
e is found to be 1.75, correct?
e is always from 0 to 1.
 
I found it 0.81 something! thanks
 
nysnacc said:
I found it 0.81 something! thanks
I make it a bit more. Please post your working.
 
e = 0.827 actually
 
Well done,
For the benifit of others stuck in the same way, please tell us how you got that.
 

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