Resultant Force from Vector Addition

Steps:

• Draw thrust and wind vectors tail-to-tail to form a parallelogram.
• The resultant is the diagonal from the common tail to the opposite corner.
• In the triangle method, place wind vector head-to-tail with thrust; resultant closes the triangle.
• Match the diagram's closing vector to option C.

Why C is correct:

• C represents the vector sum of thrust and wind per the parallelogram law of vector addition.

Why the others are wrong:

• A is the thrust vector alone, ignoring wind.
• B is the wind vector alone, ignoring thrust.
• D is an equilibrium vector (zero resultant), not the sum.

Final answer: C