How does the roller coaster Raging Bull show Newton's Laws?
602069
Newton's first law: The force of the car, an unbalanced force, pushes the car forward and the car keeps moving until another unbalanced force stops it. \n\nNewton's second law: The car has mass and accelerates, so therefore it has force. Also, the car goes in the direction in which the force is pushing it.\n\nNewton's third law: The car pushes back on the track and the force of it pushing back sends it forward. This proves that for every action there is an equal but opposite reaction.
525497
Of course yes. Inertia is described by the first Newton's law of motion, which applies to any mass, be it a rigid body or not. You can imagine this experiment: put on the bus floor a glass sphere (a good approximation of a perfectly rigid body) and imagine what happens when the bus deviates from resting or moving uniformly: the sphere moves w.r.t. the floor. Its motion is not related to its rigidity, but to the fact that the sphere is not connected to the bus structure, therefore it doesn't receive any external force contrasting its inertia.
128552
Magnetic brakes are made up of two rows of very strong Neodymium magnets. When a metal fin (usually made of aluminum) passes between the rows of magnets, eddy currents are generated in the fin, which creates a magnetic field opposing the fin's motion. The resultant braking force is directly proportional to the speed at which the fin is moving through the brake element. \n\nSo the faster the roller coaster is moving, the more braking action occurs.  \n\nFor an automobile, purely magnetic braking probably wouldn't be a good idea, because you wouldn't be able to stop fast when moving slowly.  However magnetic braking is already in use for cars, in hybrid cars, when one puts on the brakes, the wheels turn a generator.  A generator works by moving wires through a magnetic field.  Moving the wires through a magnetic field generates electricity, the electricity generates an opposing magnetic field, which slows down the wheels while putting electricity back into the battery of the car.
256930
dba_gregg is correct.\n\nThe gravity pulls the front while the back is still supported by normal reaction force. Thus a torque is acting so as to rotate the bus with the front down. The angular momentum produced is conserved and the bus begins to rotate about the free axis passing through its centre of mass.
788162
All three Newton laws are real. They do support other two law, there is no conflict in them.
899952
If you throw a ball across the room, it will stop accelerating as it leaves your hand.\n\nThe whole ball (including anything inside it) will carry on travelling according to the force you applied, but its direction will be altered by gravity (which is still pulling it downwards).\n\nThe shape it's flight makes is called a 'parabola', and this same shape happens whenever gravity stops an object from travelling upwards (even a purely vertical thrust will lead to some sideways movement; this is called 'Coriolis effect'), and makes it travel downwards instead.\n\nBecause the outside of the object is always travelling in the same direction as the objects inside it, they don't press on each other (their relative 'G' is zero). Because 'weight' is actually just relative pressure, the objects will seem weightless.\n\nThe American and Soviet 'vomit comets' are large transport aeroplanes with strengthened wing roots and a padded interior.\n\nThe pilot will first initiate a steep dive, and pull up out of this as if he is going to 'loop the loop'. Pulling up from a dive like this will press the passengers against the floor, so they seem heavier than normal; typically 3-4 times their normal weight (3-4G).\n\nAs the plane comes up from the dive, this extra 'G' will decrease, until it reaches zero, and the passengers feel 'weightless'. \n\nAt that point, the aeroplane is travelling upwards under the momentum of its own weight, like a roller coaster. If the pilot kept the engines accelerating, they would drive the plane upwards and press against the passengers, but by cutting the engines, the plane is left to rise like a thrown ball. It travels in a parabolic curve, but the passengers don't (they tend to bounce around in zigzags, perform somersaults for the camera, lose their sense of direction and start puking)\n\nAbout 40 seconds of weightlessness can be simulated in this way, because that's how long it takes for the plane to stop rising, and return to its downward dive speed. If it was left to dive for too long, pulling out of the dive would rip the wings off.\n\n(if that happened, the passengers would experience weightlessness (or very nearly; air resistance would slow the plane, but not them) all the way to the ground, but they wouldn't be able to tell us about it afterwards)
874216
its newtons first law, (objects in rest stay at rest unless a force is acted upon it which causes acceleration) and objects in motion stays in motion\n\naka intertia keeps the smaller peices moving in the same direction
206699
Depends on what you mean by block the effects. Stainless is transparent to magnetism much like glass to a flashlight, ferrous (normal) steels will "pipe" the magnetism to a new direction, and Aluminum will scramble the magnetism.\n\nThis scrambling of the magnetism by aluminum is used by modern roller coasters as a braking device. Powerful magnets are on the vehicle and the aluminum is attached to the guideway. When the two get close toghether the scrambled lines of magnetism have the effect of removing energy from the moving vehicle (slowing it down) and heating up the aluminum.\n\nTry this: while not in the presence of steel, hold a powerful magnet in your hand. Swing your arm back and forth, note how freely your hand moves. Now swing your arm close to, but not touching a plate of aluminum. When you get near the aluminum your arm will slow down.\n\nNow set the magnet on the aluminum. It does not stick like it would to steel. The braking effect only occurs when the magnet and aluminum are moving relative to each other.\n\nAt high speeds this magnet-aluminum relationship builds up much like water causes a tire to hydroplane. This website wants to use this effect to build high speed railways: http://www.magplane.com
733729
http://en.wikipedia.org/wiki/Newton%27s_law_of_universal_gravitation
12014
Though I like most answers to this question, posted here, and also enjoy this source http://howthingswork.virginia.edu/print.php?title=Bicycles&startdate=0&enddate=99999999&topic=bicycles, I would actually answer this question with Newton's Three Laws of Motion (http://csep10.phys.utk.edu/astr161/lect/history/newton3laws.html), especially the Second Law of Motion: F = ma.\n\nIn this case, a few forces come into play: gravitational force, gyroscopic precessional force, as well as the force applied by the rider of the bike, to name a few.  If the net force (F) is non-zero, the bike's center of gravity would move with an acceleration (a.)\n\nWhen a bike is stationary, there is only gravitational force.  If the bike's center of gravity goes off its base of support, the bike would move toward the ground in that off direction.  Now if someone would apply a force whose vertical component cancels or is greater than the gravitational force, then the bike would not drop to the ground, for the same reason: no F, no a.\n\nWhen a bike is moving, the forces generated by the gyroscopic precession and the steering of the rider would cancel out the gravitational force, keeping the bike moving and not falling to the ground.  At a slower speed (hence a smaller gyroscopic precession force) or with a novice rider (not knowing how to steer the wheel) or a combination of both, these forces would be less than the gravitational force, and the bike would still fall.  Any kid learning how to ride a bike would tell you that :-).  Similarly if we push a bike forward, it would eventually fall, once the gravitational force would dominate and a (acceleration to the ground) would be greater than 0.
131717
THE HAT LAW (beeep! beeep! Move it Hat Guy!)\nTHE YOU BIG BULLY LAW (try & knock me down)\nTHE HELP I'M A BUG LAW (SPLAT! *Help, I'm a bug!*)\n\nYour question rocks because all you hear from books and teachers is (use Peanuts TV show teacher voice here)\n\n"bwah bwah bwah tends to remain in motion bwah bwah equal and opposite reaction bwah bwah bwah"\n\nI think this is because they do not really understand it.\n\nYou know who understands this stuff by the seat of their pants? Bikers! Harley, Suzuki, Honda, you name it, they totally get it.\n\nAction-Reaction, sure enough. But you have asked what is so QUESTION NUMBER ONE in physics. \n\nHere's a way to remember and understand through a totally whack story.\n\nIt took a super-genius, I mean way smarter than Einstein, to figure it out. A good old farm boy, astrologer, magician & alchemist, religious fanatic, mathematician and all around kook. Yes sirree, Sir Isaac Newton.\n \nWell we all know what a force is, it is a sort of push or pull -- think of it as something that changes or *tries to change* the motion of stuff.\n\nNewton first figured out that if you leave a thing alone, or if the pushes and pulls on it cancel out, then it will sit there like a lump. Like those drivers wearing hats, and like sit there after the light has already turned green two minutes ago.\n\nOr else a thing will keep moving in the same straight line direction and speed like those drivers wearing hats who go 40 mph on the expressway with their turn signal blinking on and on. This is known as "THE HAT LAW".\n\nAll was well until he noticed that things move faster in an amount equal to how much you bully them or push them around. Twice the force, twice the fasterness and fasterness (also known as acceleration). This is called the "YOU BIG BULLY LAW".\n\nThen he discovered a fly in the ointment. His HAT and BULLY laws didn't really explain all that much. Something was gumming up this beautiful theory. We call it MASS and it is still an unknown mystery as to what it really is. So we vaguely call it the amount of stuff or matter in a thing.\n\nSo he found out that for a certain force the faster-isity (acceleration) is cut in half if you double the mass. The bully has to push twice as hard to fasterize two little kids. So he was like "I'll just add that in, and all will be cool". The "YOU BIG BULLY LAW" and "THE HAT LAW" totally did it all. Let's hear it, big-time: Boo Yah!\n\nBut then Newton had a road accident. He was gunning his Harley over London bridge at like 250 when a bug hit him in the mouth and knocked out one of his wooden teeth. He was all "Why am I so in pain?". And the bug as it squooshed said "Help! I'm a bug!"\n\nSo spitting out the splinters of his wooden tooth and the splattered bug, he had this revelation. He realized that because he was moving so fast, and the bug slowed down so fast, that even a miniscule mass like a bug was like taking a hammer to his tooth.\n\nHe noticed that the force was equal to the mass of the bug times the speed of impact all happening in a brief moment. \n\nSince Newton spoke Latin (he was the love child of Joe Newton and an Italian governess) he wrote "Fastus buggus ina momentum hurtus like crazy." Today we call this "momentum" (really) It is just "mass times speed" or "force times a small moment of time".\n\nAnd he realized that the bug smashed up his tooth, but also that the bug was squashed (like a bug) because they were trading off the EXACT same amount of momentum. \n\nThe force on the tooth by the bug in the moment of time was PRECISELY equal to the smacko-ing the tooth used to stop the bug dead.\n\nHe said "Hey, like he broke my tooth, but I killed him soooo dead!" He did the math and found that the force of the bug on the tooth was equal to the force of the tooth on the bug!\n\nNo way did the two eq
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Nope...force is what you are looking to determine.  Force equals mass x acceleration.  The fly would have to travel MUCH faster to have any impact on the train.  Also, the fly, once it made initial contact with the train, doesn't decelerate all at once...parts of it continue moving after other parts stop, and some parts start moving in East and West directions...SPLAT!
1006189
Explain Newtons laws of motion.
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Newton's 2nd Law is about conservation of momentum\n\nAn example would be when the space shuttle is decreasing its speed in order to land on the comet\n\nNewton's 3rd Law\n\nWhen the crew were drilling into the comet, the drill was exerting a force into the rock and ice. The comet itself was exerting a force equal to the drill. That is why it was shaking.\n\nAnother example would be when the space shuttle was taking off from the comet.
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A force is a push or pull on an object.\n\nNewton's second law states that a an applied force causes an object to accelerate.  It's one of the most if not the most powerful physics equations.  Force equals mass times acceleration.  F=ma.  So when an object falls the force of an object is equal to the mass of the object times the acceleration due to Earth's gravity (9.81 m/s/s or 9.81 meters per second per second or meters per second squared.)  All objects experience the same acceleration due to gravity.  The units for force are, oddly enough, called Newtons and one newton equals one kilogram times one meter per second squared.  One pound is 4.48 newtons. \n\nNow it's important to understand that newton's second law, F=ma, applies to net forces or unbalanced forces.  Just because an object is moving doesn't mean it's accelerating.  When you press the accelerator you car speeds up and the engine is exerting a net force on the car.  When your speed maxes out at 120 or however fast your car can go the force of the engine is ballanced against the forces against the car (friction from air, the road and the engine parts)  \n\nTake tug of war.  An set of even matched teams won't result in one team moving across the line.  The forces are balanced.  Add one more strong guy to one team and the weaker team will speed up from zero to slowly moving across the line.  \n\nAlso force is cumulative.  When you can't pick up a heavy box what do you do?  You get help.  One smurf can lift a pebble but the whole smurf village can lift a boulder.\n\nAlso acceration is velocity divided by time a velocity is different from speed in that velocity is a vector, it has magnitude (speed) and direction.  If you change directions you will accelerate.\n\nIf you're in a train with no windows and an increadibly smooth track you shouldn't be able to tell that you are moving if the train't velocity is constant, however if it speeds up, slows down or goes around a corner while going at a constant speed the velocity is changing.  In the first two cases because of a change in magnitude (speed) in the last case because of a change in direction and you experience a force that pushes or pulls you in a direction.\n\nWeight is the force due to gravity and can change due to the masses of the objects involved.  For example you may have a weight of 100 lbs on earth and a mass of 40 some kilograms but on the moon you weigh 1/6 as much but still have a mass of 40 kg.  On Earth you can convert between pounds (a measure of force) and kilograms (a measure of mass) because the acceleration due to Earth's gravity (9.81 meters per second squared) is the same and cancels out in the equation.
354103
Think of a car traveling at 90 mph up a ramp. When it gets to the end of the ramp all four wheels leave the ground and the whole car continues upward. Is gravity broken? No, it's just that the velocity of the car upward has more force than gravity trying to pull it down. Of course it will pull it down as soon as the upward momentum decreases enough.\n\nAnother example. The Shuttle orbits around Earth even though gravity is still there and as strong as ever. Again there are two forces at work on the Shuttle -- gravity is pulling downward while at the same time the Shuttle's speed is trying to hurl it off into space. The two forces aren't cancelled or "broken," they're just balanced so that neither completely gains control of the Shuttle.
317260
This is not Newtons third law. the two forces you mentioned does not form action reaction pair. they act on the same body. Newtons third law in this case is : action : force of gravity exerted by the earth on the book , reaction : force of gravity on earth by the book. and action : normal force on the book by the table , reaction : force exerted by the book on the table in the downward direction