$0/2$ Points$]$

$$

MI$410.$Q$\mathrm{.}004.$

PRE

You know that a collision must be "elastic" if:

The colliding objects are stretchy or squishy

The sum of the final kinetic energies equals the sum of the initial kinetic energies

There is no change in the internal energies of the objects $($thermal energy, vibrational energy, etc.$)$

The momentum of the two$-$object system doesn't change

The colliding objects stick together

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