Steve Hewitt and Gretchen are touching each other. Although one person touched the other person first they are both still coming in contact with one another. This relates to Newton's third law, because the father is exerting a force on his daughter and his daughter is exerting an equal but opposite force on him.
The action is your foot pushes on the football, putting an external force on it. The reaction is that the football pushes on your foot and it accelerates. Neither force is greater they are equal and opposite.
Yes, the forces are equal and opposite, because they are the only forces acting on the person standing still. No, they do not form an action-reaction pair, because the forces are acting on just the person. Gravity pulls the person
The action is your foot pushes on the football, putting an external force on it. The reaction is that the football pushes on your foot and it accelerates. Neither force is greater they are equal and opposite.
Yes, the forces are equal and opposite, because they are the only forces acting on the person standing still. No, they do not form an action-reaction pair, because the forces are acting on just the person. Gravity pulls the person