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Which of the following statements is NOT true about action-reaction forces according to Newton's Third Law?
They act on different bodies
They are equal in magnitude
They occur simultaneously
They cancel each other out to keep the body in equilibrium
They cancel each other out to keep the body in equilibrium
Newton's Third Law states that for every action, there is an equal and opposite reaction; however, these forces never cancel each other out because they act on two different bodies. Since the force is applied to separate objects, they cannot result in equilibrium for a single body.
Newton's Third Law states that for every action, there is an equal and opposite reaction; however, these forces never cancel each other out because they act on two different bodies. Since the force is applied to separate objects, they cannot result in equilibrium for a single body.
If you push a wall, the wall pushes back on you with equal force. You don't move into the wall because your feet are pushing against the floor, not because the wall's force cancels yours out.
O.A.D.E (Opposite, Action-Reaction, Different bodies, Equal magnitude)
F12тАЛ=тИТF21тАЛ тАФ The fundamental vector form of Newton's Third Law.
The law is defined by the vector equation FABтАЛ=тИТFBAтАЛ, where FABтАЛ is the force exerted by body A on body B, and FBAтАЛ is the force exerted by body B on body A. Because the forces are applied to different systems, the net force on either individual object does not include its own reaction force, preventing cancellation.
Action-reaction forces are always equal in magnitude and opposite in direction.
These forces act on two distinct objects, not the same one.
Forces that cancel each other out act on the same body and are known as balanced forces.
Explains motion in vacuum scenarios like rockets and jet propulsion.
Often confused with balanced forces, which do act on a single body.
Recoil of a gun after firing a bullet.
Movement of a swimmer pushing water backward to move forward.
Newton's Third Law applies even when bodies are not in contact, such as gravitational force.
Option D is incorrect because for forces to cancel and produce equilibrium, they must be applied to the same single body.
D is correct тАФ Action-reaction forces cannot cancel each other because they are always applied to two different objects.
Always check the 'system' being analyzed: if the forces are on the same body, they can balance; if they are on different bodies, they form an action-reaction pair.
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