To find the force applied to the baseball, we can use Newton's second law of motion, which states:
\[ F = m \cdot a \]
where:
- \( F \) is the force,
- \( m \) is the mass in kilograms, and
- \( a \) is the acceleration in meters per second squared.
First, we need to convert the mass of the baseball from grams to kilograms:
\[ 145 , \text{g} = 0.145 , \text{kg} \]
Given that the acceleration \( a = 80 , \text{m/s}^2 \), we can now calculate the force:
\[ F = 0.145 , \text{kg} \times 80 , \text{m/s}^2 \]
\[ F = 11.6 , \text{N} \]
Therefore, the force applied to the baseball is 11.6 N.