Find the magnitude of the resultant force which these engines exert on the rocket.?

Question

A rocket fires two engines simultaneously. One produces a thrust of 760 N directly forward while the other gives a thrust of 472 N at an angle 16.8^\circ above the forward direction.

Answer 1

A bit difficult to understand what is 16.8 degrees above the forward direction?
I’ll assume that the angle between the forces is 16.8 degrees.

We have
F(forward)= F1(forward) + F2(forward) =760+472cos(16.8)
F(forward)= 1212 N
F(sideways)= F2(sideways)= 472sin(16.8)=
F(sideways)=136 N

F=sqrt(1212 ^2 + 136 ^2)= 1220N