Question

what is the parallelogram law in vector ?


Explanation needed !​

Answer 1

Answer:

a law in physics: the resultant of two vector quantities represented in magnitude, direction, and sense by two adjacent sides of a parallelogram both of which are directed toward or away from their point of intersection is the diagonal of the parallelogram through that point.

Answer 2

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. In Euclidean geometry, it is necessary that the parallelogram should have equal opposite sides. 2(AB)2 + 2 (BC)2 = (AC)2 + (BD)2.According to the Parallelogram law of vector addition, if two vectors a and b represent two sides of a parallelogram in magnitude and direction, then their sum a + b = the diagonal of the parallelogram through their common point in magnitude and direction.