Center of MassMediumBloom L3
Question
There are some passengers inside a stationary railway compartment. The track is frictionless. The centre of mass of the compartment itself (without the passengers) is C1, while the centre of mass of the 'compartment plus passengers' system is C2. If the passengers move about inside the compartment along the track.
Options
A.both C1 and C2 will move with respect to the ground.
B.neither C1 nor C2 will move with respect to the ground.
C.C1 will move but C2 will be stationary with respect to the ground.
D.C2 will move but C1 will be stationary with respect to the ground.
Solution
Sol. C1 : may move, as passenger exert frictional force on floor of compartment.
C2 : do not move , as there is no external force on compartment + passenger
Create a free account to view solution
View Solution FreeMore Center of Mass Questions
A ball of mass m strikes the fixed inclined plane after falling through a height h. If it rebounds elastically, the impu...Three masses the placed on the x-axis 300 g at origin, 500 g at x = 40 cm and 400 g at x = 70 cm.The distance of the cen...Two particles which are intially at rest, move towards each other due to the action of their internal attraction. If the...Two blocks A and B of equal mass are released on two sides of a fixed wedge c as shown in figure, then what will be the ...All the particles of a system are situated at a distance r from the origin. The distance of the centre of mass of the sy...