Question

Two persons of masses 60 kg and 80 kg
respectively, are at the opposite ends of a boat. The
length of the boat is 4.0 m and weighs 100 kg. Both
persons move towards each other and sit in the
middle of the boat. The centre of mass of the system
shifts by (neglect water friction)
(1) 0.25 m
(2) 0.5 m
box 80
(3) 0.75 m
(4) zero​

Answer 1

Answer:

Centre of mass will not shift.

This is because when we consider two persons+boat system as a whole, no external forces are acting on it. Since there is no external force, centre of mass remains as such.

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