A trolley of mass 240 kg is initially at rest on the frictionless horizontal straight rails lying in east-west
direction. The length of the trolley is 20 meter. A man of mass 60 kg is standing at the eastern end of the
trolley. The man starts moving on the trolley from eastern end towards west with velocity 1.0 m/s relative
to the trolley. Assume the displacement and the velocity in eastward direction to be positive.
Choose the correct option.