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A sprinter runs 200m west and 100m east her displacement is?

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January 10, 2010 2:45AM

displacement is the measure of the distance from the starting and ending points, AND the direction.

it doesnt matter that she ran 300m total.

heres the math for displacement:

point b (the direction with the larger number) - point a(direction with the smaller number

the direction will be point b's direction.

so, plug it in.

200m west - 100m east

=100m west

^^

if u wer to draw displacement, you would not need 2 draw the 200m west or the 100m east; you would imply draw the starting point and then 100m west, and draw a straight line connecting them.

^^ hope this helps!