Polygon of Forces and Condition of Equilibrium

Polygon of Forces and Condition of EquilibriumIntroductionThe polygon of hurtles dissemble lot of labors leading in a simultaneously to angiotensin converting enzyme headway so every(prenominal) this carts acting result make a fancy or they atomic number 18 call Vector such as force, that has magnitude and direction and keister be resolved into components that are odd functions of the coordinates.A sender is a directed at an angle to the horizontal (or the vertical) hobo be thought of as having deuce parts (or components). That is, any vector directed in two dimensions evict be thought of as having two components. For example, if a chain pulls upwardly at an angle on the collar of a dog, then at that place is a tension force directed in two dimensions. This tension force has two components an upward component and a rightward component. As another example, consider an air insipid, which is displaced northwest from OHare global Airport (in Chicago) to a destination i n Canada. The displacement vector of the plane is in two dimensions (northwest). Thus, this displacement vector has two components a atomic number 7 component and a westward component.http//www.physics247.com/physics-homework-help/dynamics8.jpgNewton law variety of shipway by which motion place be describedwords, graphs, diagrams, in this unit Newtons Laws of social movement the ways in which motion can be explained will be discussed. Isaac Newton a 17th century scientist put forth a variety of laws, which explain why move targets or dont move as they do. These three laws have become known as Newtons three laws of motion. The focus on of Lesson 1 is Newtons first law of motion.http//www.physics247.com/physics-homework-help/dynamics8.jpgMethodAttaching four lengths of strings to the block of fine cord and adjusting the weight of F1 850g F2 800g F3 800g F4 800g to the maximums to the string and them put a sail of make-up record all the line on the sheet of paper to help you t o do all the computation did this experiment.ResultsThe shelters was in grams so this values as to be convert to Newtown so to convert kg to Newtown you multiply by the value in kilogram by 9.81My value are F1 850g = 0.85kg 9.81 = 8.34NF2 800g=0.80kg 9.81 =7.85NF3 800g=0.80kg 9.81 =7.85NF4 800g=0.80kg 9.81 =7.85NX axesY axesF1= 8.34N cos 42= 6.20NF1= 8.34N sin 42= 5.58NF2= 7.85N cos 136= -5.65NF2= 7.85N sin 136= 5.45NF3= 7.85N cos 224=-5.65NF3=7.85N sin 224= -5.45NF4= 7.85N cos 313=5.35NF4=7.84N sin 313= -5.74NSFx= 0.25NSFy= -0.16NR = 0.192N angle q =20DiscussionThis gos are equilibrium but they was like human wrongdoing thats why the results are not equal to vigour but it ok so the percentage error of are 0.41%.These lines of save produce a closed polygon thats why a draft of polygon of forces as been draw from head to tail to prove that the result of this equation and the drawing as a result angle of 20.The analytic of forces examine that these forces are equilibrium but the result shows that there is an error in the calculation this error is duo to loose of fiction, this can happen by the loop move or human error.The conjecture of losses clash experiment are the pulleys when it running can take losses of grinding, the cable was use in this experiment could be one of problem is well and another possibility is that the person ho move out the line in to the sheet of paper did not mark the watch the line.Looking to this experiment the difference between static crash and energising friction is that static friction when it applied force is less than the take away in friction, the body remains at rest It is the friction experienced by a body, when it is at rest, or when the car is at full eat up or not moving.Kinetic friction When it applied force exceeds the alteration friction the body starts moving over the other body and the clangoring of resistance experienced by the body while moving and if you are running for you to stop kinetic frict ion will apply.FRICTIONFrictions can benefits to our life because friction it happen to Olmos e very think we do in our daily life, exp when pushing a baby pushchair these friction there, when we faulting friction is there, when we shaking hands friction is there to and it burning(prenominal) uses in some situations, friction is very important and beneficial. There are more things that you could not do without the force of friction. Friction and weight are familiar experiences and taken for granted, but were not always understood. Aristotle believed that ends that contained earth fell because in Earth was at the center of the universe, and that was the natural order of things. We know that weight, which is the force of gravity between objects, not only makes apples fall from trees, but keeps the stagnate circling the Earth, and the Earth circling the sun. Aristotle alike believed (and some students still believe) that the natural state of an object is to be at rest. That is, without a force pushing it, an object will slow down to a stop. This view overlooks friction, which is the force that causes most objects we agnise to come to rest. Now we know that there is nothing pushing planets on their orbit, and that without gravity to hold them in orbit, they would continue to move in a straight line until interfered with Friction.The disadvantage of friction is that you could not walk without the friction between your tog and the ground as you try to step foregoing you push your foot backward Friction holds your shoe to the ground, allowing you to walk contain how difficult it is to walk on slippery ice, where there is little friction when you playing a football match it makes friction and friction also cause as to use lot of energy so we are playing a big object on friction writing with a pencil requires friction You could not hold a pencil in your hand without friction It would slip out when you tried to hold it to write The graphite pencil led would not make a mark on the paper without friction.A pencil eraser uses friction to bother off mistakes written in pencil lead Rubbing the eraser on the lead wears out the eraser due to friction, while the particles worn off adjoin up the pencil lead from the paper.The means of reducing friction when moving a large object is that if two people move the object with the same forces they will be less friction and you need to visit friction between the box and the tile floor so that you can move the box easy, you can increase friction on your shoes to help you move the box.Static frictionStatic friction is friction between two solid objects that are not moving comparative to each other. For example, static friction can continue an object from slue down a sloped rise up. The coefficient of static friction, typically denoted as s, is unremarkably higher than the coefficient of kinetic friction.Kinetic frictionKinetic friction occurs when two objects are moving relative to each other and rubs together (like a sled on the ground). The coefficient of kinetic friction is typically denoted as k, and is usually less than the coefficient of static friction for the same materials. In fact, Richard Feynman reports, with dry metals it is very hard to show any difference. Finally, new models are beginning to show how kinetic friction can be greater than static friction.A surface can always supply a normal force, perpendicular to the surface. However, a surface quite often also supplies a fiction force parallel to the plane. Friction forces always oppose the motion or prevent the motion.ConclusionsFriction is necessary in many ways to prevent slithering or sliding but also, it can be a execration because it can affect many thinks in our life by in reality friction is very important, in this report the very important key is that the experiment went well as according to plan the calculation was correct but the was a small error in the all project that we count prove that t his equation was equilibrium but the error did came from many ways exp human error and many thinks.Referenceshttp//www.physics247.com/physics-homework-help/dynamics8.jpghttp//en.wikipedia.org/wiki/Static_friction