Newtons third law
Reflective Writing 6
In the textbook it states Newton’s third law as how two objects interact with each other. For example when you take a seat on a chair you are pushing down on the chair while the chair is pushing back up on you which is also known as the normal force. With this interaction between two objects there will be an action and reaction pair of forces. For example force A acts on B and force B acts on A. These exist as a pair or not at all. The name is also misleading because you cannot describe one force as the action or one as the reaction, neither have an implication of cause and effect. It also states that the two members of an action/reaction pair act on two different objects. And that the two members also point in opposite directions and are equal in magnitude. So if someone is throwing darts at a dart board, the dart will exert a force on the board and by the third law the nail will exert a force back on the dart to complete the pair. These forces will be in opposite directions.
Another example that you see something similar for an action/ reaction pair is, when a baseball bat strikes a ball. There's no doubt the bat applies a force to the ball: It accelerates rapidly after being struck. But the ball must also be applying a force to the bat. The mass of the ball, however, is small compared to the mass of the bat, which includes the batter attached to the end of it. Still, if you've ever seen a wooden baseball bat break into pieces as it strikes a ball, then you've seen firsthand evidence of the ball's force.
Propulsion is another action/ reaction situation. Such as a tire puts a force on the road and the road also puts a force on the tire in the opposite direction. That’s how it propels its self forward or backwards. In a jet or a rocket ship the propulsion for it to move comes from the expelled gases acting on other gases in the air around it. So the action is the gas from the rocket and the reaction will be the force of the gases in
In the textbook it states Newton’s third law as how two objects interact with each other. For example when you take a seat on a chair you are pushing down on the chair while the chair is pushing back up on you which is also known as the normal force. With this interaction between two objects there will be an action and reaction pair of forces. For example force A acts on B and force B acts on A. These exist as a pair or not at all. The name is also misleading because you cannot describe one force as the action or one as the reaction, neither have an implication of cause and effect. It also states that the two members of an action/reaction pair act on two different objects. And that the two members also point in opposite directions and are equal in magnitude. So if someone is throwing darts at a dart board, the dart will exert a force on the board and by the third law the nail will exert a force back on the dart to complete the pair. These forces will be in opposite directions.
Another example that you see something similar for an action/ reaction pair is, when a baseball bat strikes a ball. There's no doubt the bat applies a force to the ball: It accelerates rapidly after being struck. But the ball must also be applying a force to the bat. The mass of the ball, however, is small compared to the mass of the bat, which includes the batter attached to the end of it. Still, if you've ever seen a wooden baseball bat break into pieces as it strikes a ball, then you've seen firsthand evidence of the ball's force.
Propulsion is another action/ reaction situation. Such as a tire puts a force on the road and the road also puts a force on the tire in the opposite direction. That’s how it propels its self forward or backwards. In a jet or a rocket ship the propulsion for it to move comes from the expelled gases acting on other gases in the air around it. So the action is the gas from the rocket and the reaction will be the force of the gases in