 Quote by i_island0
Elastic collision is one in which translation Kinetic energy is conserved. IF during collision, some portion of energy is converted into vibrational or even rotational KE, then such a collision cannot be called elastic.
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Hi i_island0!
I don't think I agree with that … "elastic" simply means that
kinetic energy is conserved, and rotational KE
is included.
Of course, "elastic" isn't a word like "newton" that has an internationally recognised definition … it's just a customary word … but I'm pretty sure the people who set exams use it to include all KE.
hmm … on the other hand, you were right the last time
…
so if you have any quotation to back up your claim, let's see it!