Physics
posted by alice .
An ant on a picnic table travels 40 cm eastward, then 25 cm northward, and finally 15 cm westward. What is the ant's directional displacement relative to its original position?

Physics 
Henry
X = 4015 = 25 cm.
Y = 25 cm.
tanA = Y/X = 25/25 = 1.00
A = 45o. = Direction.
Mag. = X / cos45 = 25/cos45 = 35.36 cm.
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