Q.A particle of mass m moving with velocity $u\hat{i}$ collides elastically with an identical particle at rest. After collision, the two particles move at right angles. The speed of each particle after collision is

u

\frac{u}{\sqrt{2}}

\frac{u}{2}

\sqrt{2}u

The correct solution involves applying the fundamental concept to derive the final value step by step...

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Q.A particle of mass m moving with velocity ui^u\hat{i}ui^ collides elastically with an identical particle at rest. After collision, the two particles move at right angles. The speed of each particle after collision is