Question

(Long
State Parallelogram law of vector addition. Find the magnitude of the
resultant vector of two vectors P and ã inclined at an angle '0' with each
other
Or​

Answer 1

Answer:

Let P and Q be two vectors acting simultaneously at a point and represented both in magnitude & direction by two adjacent sides OA and OD of a parallelogram OABD as shown in figure. Let θ be the angle between P and Q and R be the resultant vectors. According to parallelogram law of vector addition, diagonal OB represents the resultant of P and Q.

So, R=P+Q