The formula to calculate the mass from weight is:
\[ M = \frac{W}{9.81} \]
Where:
To convert weight to mass, simply divide the weight by the acceleration due to gravity (9.81 m/s²).
Let's assume the following value:
Step 1: Divide the weight by the acceleration due to gravity:
\[ \frac{98.1}{9.81} = 10 \]
Therefore, the mass is 10 kg.