nursing AIIMS BSc Nursing 2025 Mock Test Series Physics Center of Mass and Linear Momentum Center of Mass
A wooden plank of mass 90 kg and length 3.3 m is floating on still water. A girl of mass 20 Kg walks from one end to the other end of the plank. The distance through which the plank moves is
1
30 cm
2
40 cm
3
80 cm
4
60 cm