1. The problem is to understand the meaning or value of the letter 'g' as given. 2. In mathematics or physics, 'g' often represents the acceleration due to gravity, which is approximately $9.8$ meters per second squared on Earth. 3. If you meant something else by 'g', please provide more context or a complete question. 4. Without additional information, the best interpretation is that 'g' stands for gravitational acceleration. Final answer: $g \approx 9.8$ m/s$^2$ (acceleration due to gravity).