emplain all newton's law?
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Isaac Newton's Laws of Motion were first published in his work Philosophiae Naturalis Principia Mathematica (1687). Newton used them to prove many results concerning the motion of physical objects. In the third volume (of the text), he showed how, combined with his law of universal gravitation, the laws of motion would explain Kepler's laws of planetary motion.
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Newton's Laws of Motion:\n\nI. Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.  \n\nII. The relationship between an object's mass m, its acceleration a, and the applied force F is F = ma. Acceleration and force are vectors (as indicated by their symbols being displayed in slant bold font); in this law the direction of the force vector is the same as the direction of the acceleration vector.  \n\nIII. For every action there is an equal and opposite reaction.
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Force - Newtons\nMass - Kilograms\nAcceleration - metres per second
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The answer is C. Although B seems to be a possible answer at first, there could still be an n-number of forces acting on the object such that the sum of all the force vectors is zero, thus making C the more complete answer. One of Newton's laws says that F=m*a (force on an object equals its mass times its acceleration), or a force of 1 Newton on a 1kg object will make it accelerate at a rate of 1m/s^2 in the same direction of the force.
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Newtons is the unit for measure of force
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If the forces are both acting in the same direction, add them together. = 65 Newtons
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Try this: http://en.wikipedia.org/wiki/Newton's_method
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Second Newton's Law:\nF-mg*Sin(b)-mg*Cos(b)*k=m*A\nb=21 degrees\nF=100 N, Sin(b)=0.35, Cos(b)=0.93, m=11.5 Kg, k=0.400\nTherefore:\n100-11.5*10*0.35-11.5*10*0.93*0.400=11.5*A\nA=0.12 m/s^2\nv(t)^2-v(t=0)^2=2*A*(x(t)-x(t=0))\nv(t=0)=1.5 m/s, x(t)-x(t=0)=4.05 m\nTherefore:\nv(t)=4.79 m/s\nEnd. Thank U... Ramin
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Lift, thrust, gravity, drag.
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Newton's Laws of Motion:\n\nI. Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it. \n\nII. The relationship between an object's mass m, its acceleration a, and the applied force F is F = ma. Acceleration and force are vectors (as indicated by their symbols being displayed in slant bold font); in this law the direction of the force vector is the same as the direction of the acceleration vector.\n\nIII. For every action there is an equal and opposite reaction. \n\nThe link below explains each one very well.
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This is really simple stuff. Newtons is force, seconds is time, meters is length, and meters per second is length per time, or velocity.
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All 3 of Newtons laws of motion apply to a rocket, no matter the environment. Actually, All the laws of physics apply to a rcoket no matter the environment...it is not as if just on law controls how something opperates.\n\nNewton's 3 Law as well as the law of conservation of momentum work well to describe how a rocket engine accelerates a rocket.  These two laws apply both in an atmosphere and in space.
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From..umm.. one of newton's laws (I don't remember which one now):\nSum of forces=mass*acceleration\nwe want to find the acceleration\n\ntwo forces apply on the mass, weight and friction\nforce due weight= mass * gravity * sin(25)\n                           = 22 * 9.8 * sin (25) = 91.12 N\n\nforce due friction= mass * gravity * cos(25) * fric. const.\n                           = 22 * 9.8 * cos (25) * 0.2 = 39.1N\n\nback to newton's law:\n-force due weight-force due friction= mass * acceleration\n\n(negative signs because forces act opposite to movement)\n\n-91.12-39.1=22*acc.\nacc.= (-91.12-39.1)/22 = -5.92 m/s2\n\nfrom the third law of straight motion under constant acceleration:\n(final velocity)^2 = (initial velocity)^2 +2 * acc. * distance\n\nwe want to find distance\nfinal velocity=0 (mass stops and reverse it's direction)\ninitial velocity= 3.9 m/s\nacc.= -5.92 m/s2\n\n0 = 15.21 + 2 * (-5.92) * dist\ndist. = -15.21/(2 * -5.92) = 1.28 m\n\nhope i didn't make any mistakes.
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Ya it actually verifies the Newton's laws.\n\n>> As per Newton's 1st law of motion, an object continues \nto be in its of rest or of uniform motion unless acted \nupon by an external force.\nIn that ad, the objects were in rest but when some object\nacted upon them, they came to motion.
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Newtons, or sometimes kilograms
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Newtons 3rd Law,\nFor every action, there is an equal and opposite reaction.\n\nSo all of the instances given, there is both an action and reaction force occuring.
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Newtons law is called the Laws of Motions. There are three laws for it. The first law is known as the  "law of inertia" states that if the forces acting upon an object are balanced, then the acceleration of that object will be 0 m/s/s. Basically if objects are not at equilibrium they do not accelerate, they only accelerate if there is a net or unbalanced force acting upon it. The second law is mainly about the behavior of objects. That all existing forces are not balance. It states thatacceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. The third law is known as " for every action there is an equal and opposite reaction " this basically states 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. The direction of the force on the first object is opposite to the direction of the force on the second object. Forces always come in pairs - equal and opposite action-reaction force pairs.