70. A man standing close to the platform at a railway station experiences a pulling force towards a fast moving train because of ________ . A.Gravitational force between train and man B.Illusion of the man C.The centripetal force D.Pressure difference due to fast moving air in between
Option D Solution: When a fast-moving train passes a man standing on the platform at rest, the air between train and person also moves with greater speed. This rapidly moving air, by Bernoulli's principle will have a lower pressure than the still air a few feet away.
