Understanding the Concepts

* Weight (Force): Weight is the force of gravity acting on an object's mass. It's measured in Newtons (N).

* Mass: Mass is the amount of matter in an object. It's measured in kilograms (kg).

* Acceleration due to Gravity (g): On Earth, the acceleration due to gravity is approximately 9.8 m/s².

The Formula

The relationship between weight (W), mass (m), and acceleration due to gravity (g) is:

W = m * g

Solving for Mass

1. Rearrange the formula to solve for mass:

m = W / g

2. Plug in the values:

m = 39.2 N / 9.8 m/s²

3. Calculate:

m = 4 kg

Therefore, the mass of the object is 4 kg.