1. Understand Net Force

* The forces are acting in opposite directions, so we need to find the net force.

* The net force is the difference between the two forces: 20 N - 12 N = 8 N

2. Apply Newton's Second Law

* Newton's Second Law of Motion states: Force (F) = Mass (m) x Acceleration (a)

* We know the net force (F = 8 N) and the mass of the ball (m = 1 kg). We need to find the acceleration (a).

3. Solve for Acceleration

* Rearrange the formula to solve for acceleration: a = F / m

* Substitute the values: a = 8 N / 1 kg = 8 m/s²

Answer: The resulting acceleration of the ball is 8 m/s².