Understanding the Forces

* Gravity: The Earth exerts a downward force on the ball due to gravity. This force is calculated as:

* F_gravity = mass * acceleration due to gravity (g)

* F_gravity = 1 kg * 9.8 m/s² = 9.8 N

* Air Resistance: This force acts upward, opposing the ball's motion. In this case, it's given as 2 N.

Calculating Net Force

The net force is the vector sum of all forces acting on the object. Since the forces act in opposite directions, we subtract them:

* Net force = F_gravity - Air Resistance

* Net force = 9.8 N - 2 N = 7.8 N

Answer:

The net force acting on the freely falling 1-kg ball is 7.8 N downward.