1.

A sphere A moving with a speed 'U' and rotating with an angular velocity 'omega' makes head-on elastic collision with an identical stationary sphere. There is no friction between the surfacces A and B neglect gravity (A) A will stop moving but continue to rotate with angular velocity 'omega' (B) A will come to rest and stop rotating (C ) B will move with speed 'U' without rotating (D) B will move with speed U and rotate with an angular velocity w.

Answer»

A &C
A & B
B & D
C & D

Answer :A


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