Question 986535
Lets assume the force is along the x axis. Lets assume the 51lb force is also along the x axis.
What angle is the 45lb force at wrt to the x axis such that the total force along x is 73?

{{{73 = 51 + 45(cos(x))}}}
{{{(73 - 51)/ 45 = cos(x)}}}

{{{0.489 = cos(x)}}}
{{{arccos(0.0489) = x}}}
60.7 degrees =x