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I am dropping a cylindrical cast iron bar with a know elastic modulus and poisson's ratio, $E_{1}$ and $v_{1}$, onto a flat beam of elastic modulus, $E_{2}$ and $v_{2}$ so there is tangential drop impact.

Originally I was going to use the conservation of energy to find the velocity before impact, and then assume the final speed to be 0. And I would also assume an impact time of 0.1 sec so the force would be $$F=m\Delta v/\Delta t$$

I feel like there is a way to find a more precise impact time using the properties of the two objects since there will be elastic deformation between the two. I also want a better way of doing this with the properties because I want to be able to show rubber affects the impact time to reduce the force exerted

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