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A ball of mass M moving with velocity ν collides elastically with wall and rebounds .The change in momentum of the ball will be :

(A) Zero

(B) Mν 

(C) 2 Mν

(D) 4 Mν

1 Answer

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Answer is (C) 2 Mν

∆p = Mν - (- Mν) = 2 Mν 

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