Physics, asked by adhithya227, 4 months ago

derive expression for magnitude and direction of resultant vector using parallelogram law

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Answered by Edhaliniyazh

Answer:

Derivation of the law

Let θ be the angle between P and Q and R be the resultant vector. Then, according to parallelogram law of vector addition, diagonal OB represents the resultant of P and Q. Now, expand A to C and draw BC perpendicular to OC. which is the magnitude of resultant.

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