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A particle of mass m is moving in y z -p...

A particle of mass `m` is moving in `y z` -plane with a uniform velocity `v` as shown in figure. It collides elastically with the wall `A B`. The change in its angular momentum about the origin as it bounces elastically from the wall is `sqrt(alpha)` mvai . Find `alpha`.
'(##CEN_KSR_PHY_JEE_C09_E01_012_Q03##)'

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