Question

State the “PARALLELOGRAM LAW OF VECTOR ADDITION”. Hence, find the resultant.​

Answer 1

Answer:

Parallelogram law states that the sum of the squares of the length of the four sides of a parallelogram is equal to the sum of the squares of the length of the two diagonals.

If two vectors are acting simultaneously at a point, then it can be represented both in magnitude and direction by the adjacent sides drawn from a point. Therefore, the resultant vector is completely represented both in direction and magnitude by the diagonal of the parallelogram passing through the point.

According to the parallelogram law, the side OC of the parallelogram represents the resultant vector R.

OA→+OB→=OC→ (or)

P+ Q =R