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Question
The figure shows a man of mass m standing at the end A of a trolley of mass M placed at rest on a smooth horizontal surface. The man starts moving towards the end B with a velocity urel with respect to the trolley. The length of the trolley is L.
As the man walks on the trolley, the centre of mass of the system (man + trolley)
- accelerates towards left
- accelerates towards right
- moves with urel
- remains stationary
The correct answer is: remains stationary
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