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No. If the Masses Are Different, the Velocities in a One-dimensional Collision Cannot Be Interchanged Because that Would Be Violation of the Principle of Conservation of Momentum.

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प्रश्न

In one-dimensional elastic collision of equal masses, the velocities are interchanged. Can velocities in a one-dimensional collision be interchanged if the masses are not equal?

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उत्तर

No. If the masses are different, the velocities in a one-dimensional collision cannot be interchanged because that would be violation of the principle of conservation of momentum.

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Momentum Conservation and Centre of Mass Motion
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अध्याय 9: Centre of Mass, Linear Momentum, Collision - Short Answers [पृष्ठ १५७]

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एचसी वर्मा Concepts of Physics Volume 1 and 2 [English]
अध्याय 9 Centre of Mass, Linear Momentum, Collision
Short Answers | Q 25 | पृष्ठ १५७

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