Force

Hello people! I am back now. Long time no post, right? Well, I am here and I am going to talk about "Force" today. Yay! Please read to the end even it's bored.So what is force? Force is a push or pull  upon an object resulting from object's interaction.
You know when you play golf, golf club pushes the golf ball forward and it makes it fly. That is pushing used by force. When you type something on the keyboard, that is pushing even though it need small amount of force. And pushing your friend is also putting force in to it (Pushing friend isn't cool, so never do it).


Newton
Do you know what N stands for? It is Newton. This is the unit of the force. As what it is called, Sir Issac Newton had discovered it and that is why it is N.  Well, I must tell you how to get the force (I mean in equation). N(force)= mass*acceleration. For example, if there is 5kg of box and the object is moving by 2m/s^2, the force person is pushing the box will be 10N because 5*2=10. Easy right?


Now let's talk about thrust. So, thrust is force that can be proved by Newton's second and third law. This is force of reaction. For example, say you want to jump. You will try to go upward. You body is flying upward, right? But your feet will press the ground to have a process of jumping. This is called Thrust. You push downward to jump. Got it?


Net Force
Now what is Net Force?(look at the image)
Net force is the force added together. For example, if I am pushing the box with 5N and other person help you out and push with the force with 10N, the net force will be 15N. You get it now? But if somebody push against that person with same force above, the box will go backward 5N because it is 5-10.




Next balanced and unbalanced force. This one is really simple. As the word says, it is the force balanced and unbalanced. I will give you examples for each forces. If there is two people pushing an object against each other with same force, that is balanced force. The force is balanced. When there are people pushing against with different force, that is unbalanced. You know if this happens, one side will get pushed.
centripetal force

Now lastly!!! I will talk about centripetal force. Many people get confused with centrifugal force and centripetal force. It is important to know the difference. Both force occurs at the round place like circle. Centripetal force is a force that tends to go round. For example, lets say you have a heavy thing like marble on the edge of the thread. You hold the tope of the thread and put marble on the bottom side. Then you spin. The marble will go round, round and round. You will also realize it when you hold you had still, the marble will keep spin. This force that tends to spin is called centripetal force. Then, centrifugal force now. Before this, you know this that everything tends to go forward right? With the same material, when you spin and then instead of stopping you let it go, it will fly away going strait. By this, you can say that centripetal and centrifugal force is always 90 degrees.

I got couple informations at my science textbook and mostly, I knew stuff. Haha.
 Okay this is end of force today! Each paragraph had different explaination and this will be easier to read. I hope you learned alot today. Thank you for reading.