A uniform wooden plank of mass 280 kg and length L is floating on still water with its one end at the origin O and its length lying along +Ve x-axis. A man of mass 84 kg standing at the end O, slowly walks to the other end.
`{:(,"Column - I",,"Column - II"),((A),"Displacement of man relative to water",(P),L),((B),"Displacement of centre of mass of plank relative to wate",(Q),(3)/(13)L),((C ),"Displacement of man relative to plank",(R ),(10)/(13)L),((D),"Final distance of centre of mass of system from O",(S),(5)/(13)L):}`

Answer

A-R; B-Q; C-P; D-S