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→About Resultant Forces
|[[File:ForceNumberLineHorizontal.png|center|400px]]
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| style="height:20px; width:400px; text-align:center;" |If the 'right' direction is chosen to be [[Positive (Number)|positive]] then any [[vector]] pointing 'right' has a positive value and any [[vector]] pointing 'left' has a negative value.
In this [[diagram]] the blue [[vector]] has a value of +3 while the yellow [[vector]] has a value of -2.