Final answer:
The net work done on the baseball during the throw is 40 J.
Step-by-step explanation:
The net work done on the baseball during the throw can be calculated using the work-energy principle. The work done on an object is equal to its change in kinetic energy. The initial kinetic energy of the baseball is zero, since its initial speed is zero. The final kinetic energy of the baseball can be calculated using the equation KE = 0.5 * m * v^2, where KE is the kinetic energy, m is the mass of the baseball, and v is its final speed.
Given that the mass of the baseball is 0.20 kg and its final speed is 20 m/s, we can calculate its final kinetic energy:
KE = 0.5 * 0.20 kg * (20 m/s)^2 = 40 J
Therefore, the net work during the throw is 40 J.