Since the two vectors are equal, the parallelogram of vectors is a rhombus, and the length of diagonal becomes two times the component of each on the bisector, namely
R=5m/s*cos(30°)
along the bisector of the 60° angle.
In other words, if we resolve the two vectors along the bisector, the components along the bisector add up, while the components perpendicular to it cancels.
2 velocities each 5m/so are inclined at 60 degree .find their resultant
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