A very smart 3-year-old child is given a wagon for her birthday. She refuses to use it. “After all," she says, "Newton's third law says that no matter how hard I pull, the wagon will exert an equal but opposite force on me. So I will never be able to get it to move forward.” What would you say to her in reply?

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The Newtons third law states that for every action there is an equal and opposite reac... View the full answer