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cookiepi: 6 months ago

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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chouetteraccoon: 6 months ago via iPhone | Last edited at 9:47PM on 11/5/2012

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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chouetteraccoon: 6 months ago via iPhone

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.
http://answers.yahoo.com/question/index?qid=20091129220434AAFu4kQ

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chouetteraccoon: 6 months ago via iPhone

Let me try that link again.
http://answers.yahoo.com/question/index?qid=20091129220434AAFu4kQ

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chouetteraccoon: 6 months ago via iPhone

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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