Animation 1 | Animation 2 | Animation 3 | Animation 4

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Newton's third law states that whenever two objects interact, they exert equal and opposite forces on each other (position is given in meters and time is given in seconds). The balls in the animations can be dragged around. As you do so, notice how the sizes of the arrows change. Each arrow represents the force on an object (the length of the arrow indicates the magnitude of the force). Which animation, if any, obeys Newton's third law? Restart.