A) \[{{F}_{1}}+{{F}_{2}}\]
B) \[{{F}_{1}}-{{F}_{2}}\]
C) \[\sqrt{F_{1}^{2}+F_{2}^{2}}\]
D) \[F_{1}^{2}+F_{2}^{2}\]
Correct Answer: C
Solution :
\[F=\sqrt{F_{1}^{2}+F_{2}^{2}+2{{F}_{1}}{{F}_{2}}\cos 90{}^\circ }\]\[=\sqrt{F_{1}^{2}+F_{2}^{2}}\]You need to login to perform this action.
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