A body of mass 'M' collides against a wall with a velocity 'v' and retraces its path with the same velocity, the change in momentum is

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2 M v

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M v

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- M v

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Solution

The correct option is B $2 M v$
$Δ P = F i n a l m o m - I n i t i a l m o m$

$= M v - (- M v)$

$= 2 M v$

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A body of mass 'M' collides against a wall with a velocity 'v' and retraces its path with the same velocity, the change in momentum is

The correct option is B 2MvΔP=Finalmom−Initialmom=Mv−(−Mv)=2Mv

The correct option is B $2 M v$
$Δ P = F i n a l m o m - I n i t i a l m o m$

$= M v - (- M v)$

$= 2 M v$