A body of mass M moving with a speed V c...

A body of mass M moving with a speed V collides on a surface at an angle 45 degree without changing its speed the change in momentum of the body will be-

`MV(hatj-hati)`

`MV(hati+hatj)`

`2MVhatj`

`sqrt(2)MVhatj`

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MOTION-CENTRE OF MASS-Exercise - 1

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