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Mathematics 25 Online
OpenStudy (summersnow8):

Find the resultant of each set of displacements: 60 km due south, then 90 km at 15 degrees north of west, and then 75 km at 45 degrees north of east. I know the answer is 38 km at 25 degrees north of west.

undeadknight26 (undeadknight26):

So what do you need? How to get there?

OpenStudy (summersnow8):

yeah, I need help with how to solve it.

undeadknight26 (undeadknight26):

This seems like physics ._. @hba You good in Physics?

undeadknight26 (undeadknight26):

Im new to physics lol

OpenStudy (summersnow8):

ok, @undeadknight26 thanks for trying

OpenStudy (princeharryyy):

can you draw the figure

OpenStudy (summersnow8):

a figure isn't given, but this is the figure i have drawn

OpenStudy (princeharryyy):

until you can't draw it you can't solve it.

OpenStudy (summersnow8):

|dw:1436290559148:dw|

OpenStudy (princeharryyy):

try solving it now!

OpenStudy (princeharryyy):

ok! leave it! HOW DID YOU SOLVED IT!

OpenStudy (summersnow8):

I don't know how to solve it, that's why I am asking for help

OpenStudy (princeharryyy):

oh!!!!

OpenStudy (princeharryyy):

ok

zepdrix (zepdrix):

woops let fix your graph a sec :) 15 `north` `of west` means we start by facing west, and rotating up 15 degrees.

zepdrix (zepdrix):

|dw:1436292130604:dw|

zepdrix (zepdrix):

So what are we doing? Adding up these vectors? :O

zepdrix (zepdrix):

That resultant shinanigans and all that? +_+

zepdrix (zepdrix):

|dw:1436292221555:dw|

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