There is a book on the table in a moving carriage of a passenger train. Is the book at rest or in motion relative

There is a book on the table in a moving carriage of a passenger train. Is the book at rest or in motion relative to a) the table b) the rails c) the floor of the car d) the telegraph poles?

These are quite interesting questions, in the answer to which we will have to be clearly guided by logic.

So let’s start answering.

A) the book is at rest, since it is motionless relative to the table on which it lies.

B) the book is in motion, as it moves relative to them.

C) the book is at rest. This is the answer, because it does not move relative to the floor in space.

D) the book moves, as it moves with the train.

Thus, we have answered all the questions.