Newton’s Third Law:Law of InteractionA Report By:

- Sacedon, Emmanuel

- Tabañag, Jefferson

- Guion, Janielle Bernice

- Jumoad, Meghann

A force is a push or a pull that acts upon an object as a result of itsinteraction with another object. We have learned the Law of Inertia andthe Law of Acceleration. Let’s proceed to proceed to the third law, The Lawof Acceleration. The Law of Acceleration states that for every action innature, there is an equal but opposite reaction. According to Newton,whenever objects A and B interact with each other, they exert forces uponeach other.

Firstly, the Law of Acceleration states that for every action in nature, thereis an equal but opposite reaction. This means that when two objectsinteract they form a force and have an equal yet opposite reaction. Thestatement also means that in every interaction, there is a pair of forcesacting on the two interacting objects. The direction of the force on the firstobject is opposite to the direction of the force on the second object.Forces always come in pairs - equal and opposite action-reaction forcepairs. When you sit in your chair, your body exerts a downward force onthe chair and the chair exerts an upward force on your body. There are twoforces resulting from this interaction - a force on the chair and a force onyour body. These two forces are called action and reaction forces and arethe subject of Newton's third law of motion.

An example is a variety of action-reaction force pairs are evident in nature.Consider the propulsion of a fish through the water. A fish uses its fins topush water backwards. But a push on the water will only serve toaccelerate the water. Since forces result from mutual interactions, thewater must also be pushing the fish forwards, propelling the fish throughthe water. The size of the force on the water equals the size of the force onthe fish; the direction of the force on the water (backwards) is opposite thedirection of the force on the fish (forwards). For every action, there is anequal (in size) and opposite (in direction) reaction force. Action-reactionforce pairs make it possible for fish to swim.

Consider the flying motion of birds. A bird flies by use of its wings. Thewings of a bird push air downwards. Since forces result from mutualinteractions, the air must also be pushing the bird upwards. The size of theforce on the air equals the size of the force on the bird; the direction ofthe force on the air (downwards) is opposite the direction of the force onthe bird (upwards). For every action, there is an equal (in size) andopposite (in direction) reaction. Action-reaction force pairs make itpossible for birds to fly.

With this information, we can enhance our knowledgeand improve our understanding in the field of Science.It can be applied in many experiments but it is moreapplicable in our daily lives. This goes to show that inevery action we make, there will always be a reaction.

If a body A exerts a force on a body B, then B exerts a force on A in the opposite direction with

the same magnitude.