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The vector sum of two forces is perpendicular to their vector differences. In that case, the forces : |
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Answer» are equal to each other in magnitude `vec(F_(s))=vec(F_(1)) + vec(F_(2))` and `vec(F_(d))=vec(F_(1))-vec(F_(2))` Now `vec(F_(s))` is `bot`R to `vec(F_(d)):.vec(F_(s)).vec(F_(d))=0` or `|vec(F_(1))|^(2)=|vec(F_(2))|^(2)` or `|vec(F_(1))|=|vec(F_(2))|` The forces are equal in magnitude. |
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