Understanding the Concepts

* Newton's Second Law of Motion: This law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Mathematically:

* Force (F) = Mass (m) * Acceleration (a)

Calculation

1. Identify the knowns:

* Mass (m) = 800 kg

* Net Force (F) = 4000 N

2. Rearrange the formula to solve for acceleration:

* Acceleration (a) = Force (F) / Mass (m)

3. Plug in the values and solve:

* a = 4000 N / 800 kg

* a = 5 m/s²

Answer

The acceleration of the 800 kg car is 5 m/s².