Vector Quantity:A vector quantity has both magnitude and direction. In Newton's Second Law, both force and acceleration are vector quantities because they have specific magnitudes and directions.
Net Force:Net force refers to the overall or total force acting on an object. It takes into account all forces acting on an object and determines its resulting acceleration according to Newton's Second Law.
Mass:Mass is a measure of how much matter an object contains. In Newton's Second Law, mass affects how much an object accelerates when a certain net force is applied to it.