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Re: [Phys-L] elastic collisions


On 2016/Nov/30, at 17:56, Philip Keller <pkeller@holmdelschools.org> wrote:

I was showing my AP physics class a variety of methods for solving 1-d
elastic collisions and I came across something fun that I had never seen --
I hope it's true.


possibly related? :



What difference can be expected by the collision of a point mass and an extended one. [elastic]

Two trials:

[1] the point mass's direction is coincident (collinear)with the direction from the CoM to the contact point. And

[2] not, so a rotation is imparted.


bc viewed a video of similar {1} at a recent NCNAAPT mtng, w/ an unexpected result (for bc i.e. )



{1} the incident “point mass” was a spring loaded rod. The extended mass was a symmetrical block resting on rails.