Final answer:
The kinetic frictional force acting on the baseball player is calculated using Newton's second law (F = m x a) and is found to be 375 N directed south.
Step-by-step explanation:
The student is asking about the kinetic frictional force acting on a baseball player who is sliding to a stop. To determine this force, we use Newton's second law, which states that force equals mass times acceleration (F = m x a).
Given that the mass (m) of the baseball player is 75 kg and the acceleration (a) is 5.0 m/s² south, we can calculate the kinetic frictional force. Since the direction of the acceleration is opposite to the movement (the player is coming to a stop), the kinetic frictional force is also directed south.
Calculation: Ffriction = m x a = 75 kg x 5.0 m/s² = 375 N
Therefore, the kinetic frictional force between the baseball player and the ground is 375 N south.