Answer to Question #253788 in Physics for Jae

Question #253788

Vector A has magnitude 4.0 units and vector B has magnitude 5.0 units. The angle between A and B is 60.0°. What is the magnitude of A+B ?

Expert's answer

The magnitude is

"|A+B|=\\sqrt{(A+B\\cos\\theta)^2+(B\\sin\\theta)^2},\\\\\nA+B|=7.8\\text{ units}."

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