NEWTON S THIRD LAW OF MOTION
“Law of Interaction”
Law of Interaction
“For every action, there is an equal and opposite reaction” The statement means that
in every interaction, there is a pair of forces acting on the two interacting objects.
The size of the forces on the first object equals the size of the force on the second object.
Interaction between the hammer and nail
A hammer exerts a force on the nail and drives it into a board . But this is not the only force present for there must also be a force exerted on the hammer to stop it in the process. What exerts this force? The nail does. Newton reasoned that while the hammer exerts a force on the nail , the nail exerts a force on the hammer. So, the interaction between the nail and the hammer, there is a pair of forces , one acting on the nail and the other acting on the hammer. Between two ice skaters pushing on one another
The first skater exerts a force to the right on the second skater, at the same time, the second skater exerts a force with the same magnitude to the left on the first skater. Both skaters accelerates away from each other
The flying motion of birds A bird flies by use of its wings. The wings of a bird push air downwards. Since forces result from mutual interactions, the air must also be pushing the bird upwards. The size of the force on the air equals the size of the force on the bird; the direction of the force on the air
(downwards) is opposite the direction of the force on the bird (upwards). For every action, there is an equal (in size) and opposite (in direction) reaction. Action-reaction force pairs make it possible for birds to fly.
The motion of a car on the way to school A car is equipped with wheels that spin. As the wheels spin, they grip the road and push the road backwards. Since forces result from mutual interactions, the road must also be pushing the wheels forward. The size of the force on the road equals the size of the force on the wheels (or car); the direction of the force on the road
Law of Interaction
“For every action, there is an equal and opposite reaction” The statement means that
in every interaction, there is a pair of forces acting on the two interacting objects.
The size of the forces on the first object equals the size of the force on the second object.
Interaction between the hammer and nail
A hammer exerts a force on the nail and drives it into a board . But this is not the only force present for there must also be a force exerted on the hammer to stop it in the process. What exerts this force? The nail does. Newton reasoned that while the hammer exerts a force on the nail , the nail exerts a force on the hammer. So, the interaction between the nail and the hammer, there is a pair of forces , one acting on the nail and the other acting on the hammer. Between two ice skaters pushing on one another
The first skater exerts a force to the right on the second skater, at the same time, the second skater exerts a force with the same magnitude to the left on the first skater. Both skaters accelerates away from each other
The flying motion of birds A bird flies by use of its wings. The wings of a bird push air downwards. Since forces result from mutual interactions, the air must also be pushing the bird upwards. The size of the force on the air equals the size of the force on the bird; the direction of the force on the air
(downwards) is opposite the direction of the force on the bird (upwards). For every action, there is an equal (in size) and opposite (in direction) reaction. Action-reaction force pairs make it possible for birds to fly.
The motion of a car on the way to school A car is equipped with wheels that spin. As the wheels spin, they grip the road and push the road backwards. Since forces result from mutual interactions, the road must also be pushing the wheels forward. The size of the force on the road equals the size of the force on the wheels (or car); the direction of the force on the road