Answer to Question #246296 in Classical Mechanics for Rine

Question

Calculate the resultant vector for the following forces:

1)     N = 8.9/ Direction = 39.0˚

F_{R =}

2)     N = 15.5/ Direction = -149.1˚

F_{R =}

Answer 1

$\alpha=360-39-149.1=171.9°,$

$F=\sqrt{F_2^2+F_2^2-2F_1F_2\cos\alpha}=24.3.$