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Find the resultant of an easterly force of 218 N and a southerly force of 157 N

Okay, so I absolutely LOVE Physics. The problem is, I was Absent on this portion of the curriculum and cannot understand this. I am not getting a good grade because my teacher has not dealt much with Physics in over 50 years. He is a great teacher and is voluntarily sacrificing a lot of his time to teach us and would greatly appreciate any help. I have waited many years to take a high school Physics class and would not like to tank it now. I have a major exam TOMORROW and need a series of questions answered. If anyone can dedicate some time to aid me at this time, it would be deeply appreciated. :)

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Dang, cookiepi, I'm trying to remember how to do it, but don't trust my answer as gospel.
I'm thinking you have to deal with vectors and possibly the Pythagorean Theorem (since the N forces are perpendicular?).
I'm currently searching to see if I can find a link that might have some more knowledgable help for you...
if I find one, check the Comments area of this answer and I'll put the link there.

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Ok, here's one on a forum on Yahoo that asks a similar question, plus acceleration. And I was Kinda right, Pythagorean Theorem applies.
Since you just need the resultant force, the first half of the solution will do you. The second half is figuring for the acceleration.
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Ok that link sucks. Works from my Safari browser but not from here.

Do a google search for "resultant of perpendicular N forces" and you should get this at or near the top of the search results.
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