User:Atcovi/Balanced and Unbalanced Forces

Source (not copied text by text): Physics4Kids.com: Laws of Motion and Newton's 3 Laws of Motion: TeacherTech.rice.edu

Unbalanced Forces
Two forces acting on an object, but not equal in size. Unbalanced Forces can cause an object to speed up/slow down/stop/change direction.

Balanced Forces
Two forces acting in opposite directions, and equal in size. Whenever a Balanced Force is added to an object, the object will still be at the same speed and direction. http://eschooltoday.com/science/forces/balanced-forces.html

Newton's 1st Law: Law of Inertia
Object at Rest will stay in Rest, and an object in Motion will stay In Motion. Just like you, you will keep running in the same direction until an Unbalanced Force (a force that stops an object in it's motion, whether starting to move or stop) stops you from going, like a rider on his bicycle accidentally rams into you (let's hope that doesn't happen, that happened to me once). Or like a Car Crash, when a car rams into another car, it slows them down to the point they have stopped. The car that crashed into the car that was driving peacefully on the road produces the unbalanced force. As well like a Cat that rams into the wall, the wall produces an unbalanced force on the cat, so the cat stops.

Newton's 2nd Law: Law of Acceleration
Newton's 2nd Law states that a equal amount of force on objects with different magnitude (mass) while have different results. Basically, it's like the World Cup. The Law of Acceleration is played here: The fact that the soccer ball has a small amount of mass, it makes it easy to kick the ball with only a little bit of force. And when it comes to raging after letting a ball into the goal, you might spot the goalkeeper kicking the goalposts. The force the goalkeeper puts on the goalpost isn't enough force to move the goalpost. The same force on a soccer ball when the goalkeeper kicks it when the opponent team kicks it out of the end line won't move the goalpost when the goalkeeper kicks at it. Basically, the more mass, the more force you need to accelerate the object.

Newton's 3rd Law: Interactions
Every action force creates an equal and opposite reaction force, just like sitting on a chair, when you sit on the chair, that chair needs to exert the same force as you put on the chair, or the chair will collapse. Same concept applies to the all-good game, Tug of War. There are two teams, the two teams are both exerting equal forces on the rope in opposite directions. This is a good example of a Balanced Force (A force that does nothing on something once forced on) and Interactions. As the two teams exert force on the rope, both teams aren't moving. The rope remains in the same position. But, an Unbalanced Force in Tug Of War, is when one team pulls harder than the other, which, the team that is pulling harder, is exerting more force on the rope than the opposite team. Since this is not the same amount of force as the two teams are exerting, then it's an unbalanced force.