According to Newton's Second Law of Motion, if an object with mass m accelerates at a rate a, then the net force F acting on that object is given by:
Replace m=0.2kg and a=8m/s^2 to find the net force that acts over the softball to produce its acceleration:
![F=(0.2\operatorname{kg})(8(m)/(s^2))=1.6N]()
Therefore, the correct choice is 1.6N.