Answer to Question #945 in Mechanics | Relativity for Claire
A 43.4 N object is in free fall, What is the magnitude of the net force when
the object encounters 24.4 N of air resistance?
The net force equals to the vector sum of all forces acting on the object, the force of air resistance has the opposite direction to the weight,
thus F = W - Fair = 43.4 N - 24.4 N = 19 N