The square of resultant of two equal forces is three times their product. Angle between the force is

Two forces in the ratio 1:2 act simultaneously on a particle. The resultant of these forces is three times the first force. The angle between them is

Two force in the ratio 1:2 act simultaneously on a particle. The resultant of these forces is three times the first force. The angle between them is

Two force in the ratio 1:2 act simultaneously on a particle. The resultant of these forces is three times the first force. The angle between them is

If the resultant of two equal forces is sqrt(3) times a single . force, find the angle between the forces .