Question

Please help!!

Answer 1

Resolving horizontally .  Make  forces to the right positive 
resultant force =  70cos30-60cos60 = 60.62-60 = 0.62 lbs

resolve vertically  
resultant force =   120 sin60 - 70 sin30 = 103.92 - 35 = 68.92   lbs in downward direction

magnitude of the ressultant forsse = sqrt(68.92^2 + 0.62^2) =  68.92 lbs

direction of the force =  tan-1 (0.62 / 68.82) = 0.52 degrees east of south or  
a bearing of 
90 - 0.52  =  89.48 degrees