Can anyone give a example that best explain the law "Every action has an equal and opposite reaction " that can be demonstarted in fornt of a class? Sachin Karpe
This to give a practical demonstartion of the law.
One of the most poinent examples of Newton's third law for me has to do with firearms. I don't think I really understood this physics principle until I observed the recoil on a gun after firing. If you are allowed to present a video for your demonstration, the recoil on a gun or cannon might be an excellent demonstration. For a more practical example, simply leaning against a friend can show Newton's third law. If the other person does not respond to your weight equally, you will fall. A push can work the same way. When we push someone else, not only do they move but so do we. A very simple demonstration might be sliding two rocks into one another across a table. When the rocks meet, they will knock each other backwards. This demonstration is clear and simple but somewhat small. For a larger class, you might need a more visible demonstration. An a-frame ladder can provide a larger example. The two sides of the ladder must press against each other equally in order to support the weight of a person climbing the ladder.