obtain the expression of magnitude and direction for the resultant of two vectors making an angle tita between them
Answer (1)
20th Oct, 2021
Hi
Parallelogram law states that if two vectors are considered to be the adjacent sides of a Parallelogram, then the resultant of two vectors is given by the vector which is a diagonal passing through the point of contact of two vectors.
According to parallelogram law of vectors the resultant is represented by the diagonal passing through the point of contact of two vectors.
R2=(P+Qcosθ)2+(Qsinθ)2=P2+Q2+2PQcosθ
Resultant acts in the direction making an angle α=tan −1 (Q sin θ/ P + Q cosθ ) with direction of vector P .
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