Center of MassHardBloom 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 train of mass M is moving on a circular track of radius ′R′ with constant speed V. The length of the train...A skater of mass m standing on ice throws a stone of mass M with a velocity of v in a horizontal direction. The distance...Two particle of mass m each are tied at the ends of a light string of length 2a. Thewhole system is kept on a frictionle...A solid sphere of radius r made of a soft material of bulk modulus K is surrounded by a liquid in a cylindrical containe...A semicircular portion of radius ′r′ is cut from a uniform rectangular plate as shown in figure. The distanc...