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A point object is acted upon by forces of 4N, 5N and 6N is in equilibrium. IF=f the 6N force is removed, what is the resultant force on the object now?

I really want to know how tow find relationship between 3 forces, and is there anything to do with cos rule??? HELPPPPP-.-

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3 answers
  1. sorry i don't no,,,,

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  2. i m so sorry because i don't know

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  3. If three force vectors add to zero, they must be co-planer. This means that any one of them is the equilibrium of the other two. Therefore, when one is removed, the other two add to give the negative of the one that was removed. In this case, the 4N force and the 5N force add to give the negative of the 6N force that was removed.

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