Understanding the Concepts

* Free Fall: An object in free fall experiences only the force of gravity.

* Acceleration due to Gravity: This is the constant acceleration experienced by objects in free fall. It's represented by 'g' and is different on different planets.

* Kinematic Equations: We can use equations of motion to relate displacement, velocity, acceleration, and time.

The Problem

We know:

* Displacement (d): 3 meters

* Time (t): 1 second

We need to find the acceleration (a).

Applying the Equation

We can use the following kinematic equation:

d = v₀t + (1/2)at²

where:

* v₀ is the initial velocity (which is 0 since the object starts from rest)

Solving for Acceleration (a)

1. Plug in the values: 3 = (0)(1) + (1/2)a(1)²

2. Simplify: 3 = (1/2)a

3. Solve for a: a = 6 m/s²

Therefore, the magnitude of the acceleration of the object is 6 m/s².