A body of mass ?M? collides against a wall with a velocity v and retra – McqOptions

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1.	A body of mass ?M? collides against a wall with a velocity v and retraces its path with the same speed. The change in momentum is (take initial direction of velocity as positive) [EAMCET 1982]
A.	Zero
B.	2Mv
C.	Mv
D.	? 2 Mv
Answer» E.

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