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By: Jaime Q. |
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In this picure I am pushing forward against a wall and it is pushing backward on me with the same force that I push with. |
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| Forces always come in pairs. You can't have one force without another to push back on that force. A force is a push or pull that changes the motion of an object. To push down a wall would be much harder than pushing over a stack of paper. This is because the wall has a much greater force it can act with. |
In the picture the woman pushes backward on the wall and the wall pushes forward on the woman. |
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In the picture the girl pushes the boys hand to the right and the boy pushes the girls hand to the left. |
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In Newton's third law of motion, he states that for every action there is an equal but opposite reaction. This means that when someone pushes on a wall or falls on the ground, the wall and the ground push back on them with the same force that they pushed with. To make something move, you must push with a greater force than it can push back on you. For example, to push a box that can push back with a force of 20N without moving, you must be able to push the box with a force of 21N or greater. |
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