Two girls of equal mass `m` jump off from the border line of a stationary carriage of mass `M` with same horizontal velocity `u` relative to the carriage in same direction. Neglect the effect of friction. Mark correct options.

A man of mass m stands on a long flat car of mass M , moving with velocity V.If he now begins to run with velocity u, with respect to the car , in the same direction as V, the the velocity of the car will be

A man of mass m stands on a long flat car of mass M , moving with velocity V.If he now begins to run with velocity u, with respect to the car , in the same direction as V, the the velocity of the car will be

A railway carriage of mass M_(c) filled with sand of mass M_(s) moves along the rails. The carriage is given an impulse and it starts with a velocity v_(0) . At the same time it is observed that the sand starts leaking through a hole at the bottom of the carriage at a constant mass rate lambda . Find the distance at which the carriage becomes empty and the velocity attained by the carriage at that time. (Neglect the friction along the rails).

A railway carriage of mass M_(c) filled with sand of mass M_(s) moves along the rails. The carriage is given an impulse and it starts with a velocity v_(0) . At the same time it is observed that the sand starts leaking through a hole at the bottom of the carriage at a constant mass rate lambda . Find the distance at which the carriage becomes empty and the velocity attained by the carriage at that time. (Neglect the friction along the rails).

A man of mass m is standing on a stationary flat car of mass M. The car can move without friction along horizontal rails. The man starts walking with velocity v relative to the car. Work done by him

A man of mass m is standing on a stationary flat car of mass M. The car can move without friction along horizontal rails. The man starts walking with velocity v relative to the car. Work done by him

Relative speed of two bodies moving in same direction with speed u and v m/s: where (u>v)

Two particles of equal mass are moving along the same line with the same speed in the same direction. What is the speed of the centre of mass of the system ?

Two particles of equal mass are moving along the same line with the same speed in the same direction. What is the speed of the centre of mass of the system ?

Two particles of equal mass are moving along the same line with the same speed in the same direction. What is the speed of the centre of mass of the system ?