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No, W.R.T. the Ground Frame, the Person'S Head is Not Really Pushed Backward. - Physics

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Answer in Brief

When a train starts, the head of a standing passenger seems to be pushed backward. Analyse the situation from the ground frame. Does it really go backward? Coming back to the train frame, how do you explain the backward movement of the head on the basis of Newton's laws?

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Solution

No, w.r.t. the ground frame, the person's head is not really pushed backward.
As the train moves, the  lower  portion of the passenger's body starts moving with the train, but the upper portion tries to be in rest according to Newton's first law and hence, the passenger seems to be pushed backward.

Concept: Newton's First Law of Motion
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APPEARS IN

HC Verma Class 11, Class 12 Concepts of Physics Vol. 1
Chapter 5 Newton's Laws of Motion
Short Answers | Q 16 | Page 77
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