1.

There are two displacement vectors , one of magnitude 3m and other of 4m . How should the two vecotrs be added so that the resultant vector be5 m .

Answer»

SOLUTION :As`R = SQRT(A^(2) + B^(2) + 2AB COS theta)`
For 5m both VECTORS should be PERPENDICULAR to each other . i.e.,angle betweenthem should be `90^(@)`


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