For what values of F and ? will the forces ..

Question 1 Report

For what values of F and ? will the forces shown in the diagram below be in equilibrium.

60N and 60

^{o}

60N and 30

^{o}

20?3 N and 60

^{o}

20?3N and 30

^{o}

Answer Details

Resolve vertically, 40cos? = 20, ? = 60 $^{o}$
Resolve horizontally, f = 40sin? = 40sin60 $^{o}$
= 40( $\frac{\sqrt{3}}{2}$ )
= 20?3 N