Question

Resultant of two vectors is 20 units and makes an angle 30 degrees with a vector of magnitude 20√3 units then find the magnitude of other vector??

Answer 1

Answer:

either the two vectors are themselves equal, or their magnitudes are equal. If you add two vectors with equal magnitude, and the magnitude of the resultant vector is equal to the magnitude of both vectors, then the three vectors obviously form an equilateral triangle.