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State parallelogram law of vector additi...

State parallelogram law of vector addition. Find the magnitude and direction of resultant of two vectors `vecA` and `vecB` inclined at an angle '`theta`' with each other by using this law.

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Iftwo vectors are represented both in magnitude and direction by the adjacent sides of a parallelogram, then the resultant vector is represented both in magnitude and direction by the diagonal of parallelogram passing through same point.
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