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A particle of mass 1 kg has velocity vec...

A particle of mass `1 kg` has velocity `vec(v)_(1) = (2t)hat(i)` and another particle of mass `2 kg` has velocity `vec(v)_(2) = (t^(2))hat(j)`
`{:(,"Column I",,"Column II",),((A),"Netforce on centre of mass at 2 s",(p),(20)/(9) unit,),((B),"Velocity of centre of mass at 2 s",(q),sqrt68 " unit",),((C ),"Displacement of centre of mass in 2s",(r ),(sqrt80)/(3) "unit",),(,,(s),"None",):}`

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