Cracking the SAT Physics Subject Test

(Marvins-Underground-K-12) #1

Here’s How to Crack It


Displacement refers only to the object’s initial position and final position, not the
details of its journey. Since the rock started on the edge of the cliff and ended up on
the ground 30 m below, its displacement is 30 m downward.



  1. In a track-and-field event, an athlete runs exactly once around an
    oval track, a total distance of 500 m. Find the runner’s displacement
    for the race.


Here’s How to Crack It


If the runner returns to the same position from which she left, then her displacement
is zero.

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