SAT® Subject Test in Physics

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Difficult

Flying Physics Book

SATPHY-G491ME

A $2.0\ kg$ physics book (when at rest) zooms by a person with a speed at which the effects of special relativity are noticeable. Which diagram best illustrates possible measurements of the mass and size of the book? The book with the red arrow in each diagram represents the moving book (and the direction it is moving). The book without the arrow represents the book at rest.

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