If each force \(\vec{F_1}+\vec{F_2} \) and \(\vec{F_1}-\vec{F_2}\)has magnitude \(\sqrt {\overrightarrow {F_1^2} + \overrightarrow {F_2^1}} \) then the angle between \(\vec{F_1}\) and \(\vec{F_2}\) is

If each force \(\vec{F_1}+\vec{F_2} \) and \(\vec{F_1}-\vec{F_2}\)h

1.	If each force \(\vec{F_1}+\vec{F_2} \) and \(\vec{F_1}-\vec{F_2}\)has magnitude \(\sqrt {\overrightarrow {F_1^2} + \overrightarrow {F_2^1}} \) then the angle between \(\vec{F_1}\) and \(\vec{F_2}\) is
A.	90°
B.	60°
C.	45°
D.	0°
Answer» B. 60°

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If each force \(\vec{F_1}+\vec{F_2} \) and \(\vec{F_1}-\vec{F_2}\)has magnitude \(\sqrt {\overrightarrow {F_1^2} + \overrightarrow {F_2^1}} \) then the angle between \(\vec{F_1}\) and \(\vec{F_2}\) is

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