The resultant of two forces has magnitud...

The resultant of two forces has magnitude 20N. One of the forces is of magnitude `20sqrt(3)N` and makes an angle of `30^(@)` with the resultant. Then what is the magnitude of the other force?

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The correct Answer is:

`F_("||")=2.8xx10^(4)N`

Hint : `F_("||")=("shear stress")xxA`

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