According to Newton's third law of motion, how are action and reaction forces related?
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Third law\n    To every action (force applied) there is an equal and opposite reaction (equal force applied in the opposite direction).\n    Another way of stating Newton's third law, an interaction between two objects, is that, if object A exerts a force on object B, object B will exert the same magnitude force on A, but in the opposite direction.
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The first law of Newton is, “an object is at rest or in uniform motion till a force acts on it”\n\nHence first law tells us what a force is.\n\nA force is one which changes the state of rest or state of uniform speed.\n\nAll the three laws of motion are implicated in the given example.\n\nFirst of all let us assume that the cart with the blocks is moving toward the solid barrier with a constant speed.\n\nThough both the cart and blocks are moving, the blocks are rest with respect to the cart and vice versa.\n\nThe static frictional force between the blocks and cart is preventing the relative motion between the two.\n\nNewton’s first law explains this. \n\nIf there is no frictional force between the two, then there will be relative motion between the two.\n\n Now consider the motion of the two together. Both are moving toward the barrier with constant speed.\n\nThus both will be in a state of constant speed till a force acts on them.\n\n“The cart hits the barrier” means, “The cart exerts a force on the barrier”.\nBy Newton’s third law the barrier exerts an equal and opposite force.\n\nWe are not bothered about what happens to the barrier when the cart exerts a force on the barrier but we are concerned about the reaction force- that is the force exerted on the cart by the barrier.\n\nThe cart comes to rest because of this force. By Newton’s first law the state of motion of the cart is changed to state of rest. \n\nWhen we consider the motion of the block on the cart, initially before the collision of the cart with the barrier, there was no relative motion between the two.\n\nWhen the cart strikes the wall, the speed of the cart is reduced where as the speed of the block is still in the forward motion (toward the barrier).\n\nThere fore, the blocks will move forward toward the barrier. \n\nIf we assume that there is no friction, then the blocks will move forward and hit some portion on the cart and hence their speed is reduced and increased in the opposite direction and they do fell off the cart. This is also due to the external force and is as per Newton’s first law of motion.\n\nIf we take into account the action of force of friction, the situation becomes some what hard to explain in a simple manner.
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Basically the law you are talking about is the theory that an object in motion will stay in motion until another force acts upon it.\n\nMomentum is calculated by multiplying the mass by the velocity of the object.  There are many applications for these caclulations like if you wanted to find out what would happen in a head on collision between two objects.  You would be able to calculate in which direction the two objects would travel after the collision.\n\nAnyway, here is a website that I found for you that explains it completely.
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The motion of rockets can be explained using Newton's 3rd Law of Motion or by considering Conservation of Momentum.  (The explainations are just two ways of looking at the same thing.)\n\nNewton's 3rd Law says if object A pushes on object B, object B pushes back on object A just as hard but in the opposite direction.  Technically, as rocket fuel is burned, it is "pushed" out backward by the rocket.  The fuel then pushes forward on the rocket just as hard, making the rocket move.\n\nMomentum is the product of mass and velocity (speed and direction.)  If a rocket plus its fuel is sitting still in space, the total momentum is zero (because there is no motion).  When the fuel burns and is ejected backwards, it gains a backward momentum.  To conserve momentum (keep it equal to zero), there must also be a forward moment.  This is provided by the rocket.
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the newton's three laws of motion are as follows: law of inertia ( an object at rest will stay at rest unless acted by an outside force, a moving will continue on ots motion unless acted by an outside force), law of acceleration ( thw acceleration of a body is directly propotional the force and inversely proportional to its mass: a=f/m) and the law of interaction ( in every action there is always an equal and opossite rreaction)
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Yes, that is Newton's first law of motion.  Newton's discovery may seem like a no-brainer to you or I, but at that time many people believed that an object fell to the ground because it was attracted to the earth.  His research opened up many new theories and formulas in the field of physics like work, energy, power, momemtum, and acceleration.\n\n#2 - "The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object".  Basically force is equal to mass times acceleration.  F=ma\n\n#3 - "For every action, there is an equal and opposite reaction."  This means when you are leaning against a wall, you're applying 60kg of force against the wall and the wall is applying 60kg of force against you.  Action = Reaction.  When this equation doesn't balance out, something will usually break.
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Newton's third law was the first incarnation of an important principle of physics (still valid of course) called the law of momentum conservation.\n\nIt's regarded as a consequence of other physical laws rather than a postulate as in Newton's theory. In particular it follows mathematically from the assumption that laws of physics are unchanged under translations - that space is homogeneous.\n\nIn Newton's system, the momentum lost/gained by one material object instantaneously appears or disappears in other distant objects. In that sense it's not true except as an approximation because special relativity does not allow anything to propagate faster than the speed of light.\n\nThe modern view is that there's an exchange of momentum between matter and fields rather than directly between matter and matter. The momentum density of the electromagnetic field at each point in space is given by the cross product of the electric and magnetic fields (Poynting vector/c^2):\n\n(1/4pi c)(E x B)\n\nIntegrating the momentum density over space and taking the time derivative gives the total external force (i.e. force due to charged matter) on the electromagnetic field:\n\nF = dP_em/dt = d/dt &#92;integral (1/4pi c)(E(x) x B(x)) d^3x\n\nand there is an equal and opposite force -F (the Lorentz force) on matter due to the electromagnetic field.
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Haha whats with all these answers, if you know basic physics, One of Newtons laws of motion is that:\n\n"for an object that is stationary or travelling at constant velocity, no force acts."\n\nso you ask what is the force?\nthere is no resultant force, the driving force and resistance are equal and cancel each other out.\n\n\nAnd additionally the basic equation to find force is:\nF=ma (force = mass x accelleration), this is evidence that an accelleration needs to be taking place for a force to act.\n\nLets say you want the force for a 50kg object accellerating at 3ms-2. F=ma  ->  F=50x3 ->  F=150N.\n\nNow lets say you want the force for a 50kg object travelling at constant velocity, no accelleration.\nF=ma  ->  F=50x0  ->  F=0N\n\n\nThere you go, wasnt that easy
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Newton's Laws of motion.Everything continues in its state of rest or motion unless acted upon by an external unbalanced force.
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there are only 2\n\n1 is that you have to apply a force, and 2 is that something has to happen ie. movement
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Newtons 3 laws of motion say:\n1) An object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force.\n2)F=MA or force = mass times acceleration. It describes how an unbalanced force acts in the first law. THIS IS THE MOST IMPORTANT DISCOVERY IN ALL THE HISTORY OF SCIENCE!!!!!\n3) For every action, there is an equal and opposite reaction.\n\nNewton also discovered that gravity is a force of attraction between two masses that is equal to the product of the two masses times the gravitational constant divided by the square of the distance between them. Or F=GMm/R^2.\n\nThe combination of all of the above explains all orbits, rocket propulsion, life the universe and everything!\n\n\nThen Einstein comes along and messes it all up. He says that there is a small error in Newton's laws that depends on the speed. For stuff going really fast, Newtons laws are just totally wrong. Gravity isn't even a force at all, it is a curvature in space time.\n\nBut for every day applications, like designing a 747 or computing the path of an artillery shell or a zillion other things, Newtons laws are still used as is because the errors are vanishingly small under normal conditions.
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For every action force there is an equal and opposite reaction force.\n\nThe force your oars apply to the water creates a reactionary force of the water to your oars.  Since the oars are a part of your boat, the boat pushes forward.
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newtons are the unit of force.  the second law of motion says that F=ma, where F is the force, m is the mass and a is the acceleration of the mass.   so, you need to know the acceleration!\n\nif you are talking about an object on earth, then the acceleration is "g", which is 9.8 m/s^2.  so multiply the mass times that acceleration to get the force with which gravity pulls on that object, in newtons.
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yes:\n\nThe first answer is in the right direction.\n\nA reaction engine is one that moves in a direction opposite to the thrust of combustion.\n\nA reaction engine works on the basis of Newton's third law of motion: \n\n"For every action there is an equal and opposite reaction."\n\nIn a reaction engine fuels are burnt and the extra pressure due to formation of more volume of gases is directed to get out of a nozzle. This forms "action"\n\nAs a result of action the engine or the body containing the system moves in opposite direction.\n\nRockets and Jet Planes are the examples of reaction engine.\n\nThe movement of a balloon as a result of escaping gas from an opening is one very simple example.
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Dr. Isaac Newton proposed the 3 Laws of Motion, as below:\n\nFirst law:\nObjects in motion tend to stay in motion, and objects at rest tend to stay at rest unless an outside force acts upon them.\n\nOr simply, a force is required to move a stationary object or to stop a moving object.  \n\nSecond law:\nThe rate of change of the momentum of a body is directly proportional to the net force acting on it, and the direction of the change in momentum takes place in the direction of the net force.\n\nOr simply, a body moves along the direction of application of the force.\n\nThird law:\nTo every action (force applied) there is an equal and opposite reaction (equal force applied in the opposite direction).\n\nOr simply, there is always a reaction for any action. Egs: Due to Friction (reaction) only, we are able to walk (action).; Rocket shoots up (action) due to the reaction of the hot gases that expend through the nozzle downwards.
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We shall apply logic and find answer.\n\nForce is a push or pull.\nWhen A pushes or pulls B, in Physics, we say A exerts a force on B\nWhen A exerts a force on B, three things may happen. 1. B is accelerated.  2. B is moving with constant velocity. 3. B is in rest.\n\nB is accelerated if no other forces except the one exerted by A acts on B. The other two happens when some other forces also act or not even a single force acts. \n \nWe shall consider the first case in which B is acted on by a force exerted by A.\n\nThere are three things which cannot be ignored when we speak of a force.\n1. “A” the one which exerts a force\n2. ‘The Force’ that acts on B.\n3. “B” the one on which the force acts. When the concept of force is understood “B” can a point.\n\n  The statement, “The force acts on B” implies that A is the cause of the force. \n\nHow can A apply a force? Physics answers, ‘Because it has energy to do so,’\n\nWhat happens to A and B when it exerts a force on B\nWhen there are no other forces except the one exerted by A on B, A looses energy and B gains energy.\n\nAs long as A exerts force on B, B is in motion (accelerated) by the force  \nIn Physics we say when a force acts, the one on which the force acts gains energy and the one that exerts the force looses energy and it is seen the gain and loss are equal.\n\n In cases 2 and 3, if we remove the extra forces acting on them the situation reduces to case 1 and the principle persists.
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I don't know...his Three laws of Motion? Something about inertia that an object in motion must stay in motion until acted on by another force. Something like that.