A flat car of mass `m` is at rest on a frictionless floor with a child of mass `m`
Channel: Doubtnut
Date: 2020-07-12

A flat car of mass `m` is at rest on a frictionless floor with a child of mass `m` standing at its edge. If the child jumps  off from the car towards right with an initial velocity `u`, with respect to the car, find the velocity of the car after its jump.