The reaction of the air which escapes out from the balloon acts on the balloon forward. In this example, the action is by the balloon that pushes the air out of it when set free. Take an air-filled balloon is set free, the air inside it rushes out and the balloon moves forward. Note: Newton’s 3rd law of motion tells us four characteristics of forces. Note that action and reaction forces act on different bodies. Newton’s 3rd law of motion states that: “To every action, there is always an equal but opposite reaction.” According to this law, the action is always accompanied by a reaction force and the two forces must always be equal and opposite. The force exerted by body A on B is the action force whereas the force exerted by body B on A is called the reaction force. Let body A exerts a force on another body B, body B reacts against this force and exerts a force on body A. Newton’s 3rd law of motion deals with the reaction of a body when a force acts on it. See Also: Newton’s first law of motion examples Newton’s Third law of motion definition Newton’s 3rd law This is the cause or essence of newton’s 3rd law of motion. Only a strong force can reduce the speed of the hammer, thus newton said that the two objects must be treated on an equal base, such as the hammer exerts a force on the nail and the nail exerts a force back on the hammer. It is true because, in the example of hammer and nail, the hammer exerts a force on the nail, but the nail exerts a force back on the hammer as well, due to this the speed of the hammer rapidly reduced to zero. But Isaac newton realized that things are not one-sided.
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