I came here earlier with this question:
"A force of 20 N acts toward the west. Another force acts at the same point so that the resultant of the two forces is zero. What is the magnitude and direction of the second force?"
I was wondering if someone could explain to me how to find the answer. I'd really like to know what formula to use so I can do the next ones on my own. I've gotten through my whole physics book just fine, but for some reason this one is stumping me.
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If the resultant is zero the force has to be equal and opposite. This one really has no formula. It is just the thought process.
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