Is the Fracture Energy Equation for Ice Valid?

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AI Thread Summary
The discussion centers on the validity of using the equation for fracture energy of ice, expressed as potential energy divided by cross-sectional area. Participants confirm that this approach is rational, as it yields units of J/m², indicating energy per unit area. The equation is deemed appropriate for calculating the fracture energy after applying weights until the ice breaks. The consensus supports the method's applicability in a homework context. Overall, the equation for fracture energy in ice is considered valid based on the provided reasoning.
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Homework Statement


i have been told i can use the equation potential energy/cross sectional area to work out fracture energy of ice after dropping weights on it till it breaks. is this true?


Homework Equations


fracture energy = potential energy/cross sectional area


The Attempt at a Solution


as above
 
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It seems rational: as the units you would be given are Jm^{-2} which would imply the energy per unit area.
 

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