A girl delivering newspapers covers her route
by traveling 5 blocks west, 3 blocks north,
then 7 blocks east.
What is her resultant displacement?
Answer in units of blocks.
What is her direction? Use counterclockwise
as the positive angular direction from due
east, between the limits of −180◦
and 180◦
Answer in units of ◦
What is her total distance?
Answer in units of blocks.
total east (x axis) = 7-5 = 2 blocks
total north (y axis) = 3 blocks
magnitude =sqrt (4 + 9) =sqrt 13 blocks
tan angle N of E = 3/2
angle N of E = 56.3
compass angle East of North = 90 - 56.3