1.

two vectors having equal magnitude of 5 units, have an angle of 60°between them.find the magnitude of their resultant vector and it's angels from one of the vectors

Answer»

Magnitude of resultant force isR = √(A^2 + B^2 + 2ABcosX)R = √(5^2 + 5^2 + 2*5*5*cos60)R = √(50 + 25)R = √(75)R = 5√3



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