Sat April 16, 2011 By: Priyank Lal

what is parallelogram law of addition?

Expert Reply
Sat April 16, 2011
Parallelogram law of addition
If  and  are the two vectors to be added, a diagram is drawn in which the tail of  coincides with the tails of . Taking these two as the adjacent sides we complete the parallelogramABDC, where  = and  = . The diagonal through the common tails gives the sum of the two vectors. i,e  +   =  , where  is the diagonal through the common tails. 
Therefore, such type of vector addition is called parallelogram of addition.
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