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Find the value of the unknow force if th...

Find the value of the unknow force if the given set of force shown in figure are in equilibrium.

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`sum F_(x) = 0`
:. `F - 3 cos 60^(@) - 10 sin 60^(@) = 0`
`F = 10.16 N`
`sum F_(y) = 0`
:. `R + 3 sin 60^(@) - 10 cos 60^(@) = 0`
`R = 2.4 N`
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