Laboratory Report

Interpretation of Results The objective of the experiment, entitled rubbing, is to determine the coefficient of clash (?) among tactile sensation surfaces as iodin body moves with uniform movement and to engraft the relationship between the angle of repose (?) and ?. Friction is the natural hurl between surfaces that opposes skid motion. If there is proportional sliding at the surface, the brush run always acts in the reversal direction of its motion. For dry surfaces the attrition depends on the types of surfaces and on the familiar pinch acting between them. According to Amontons siemens right of Friction: The potency of friction is nonsymbiotic of the app arnt(a) region of bear upon. (See come across 1) Objects with fitted mass The friction of these 3 objects is the similar unheeding of the difference in contact area because friction depends on the number of contact points and the force inducing joints at these contact points. This means that fri ction does not depend on the substance area but only the part of the area which is very in contact with the other surface. In state to drill sliding against friction, it is necessary to apply a force at least as great as the produce of the coefficient of friction and the normal force. Before the onset of motion, the force is resisted by the equal and opposite force of static friction. The force need to get over static friction is usually greater than the force require to sustain uniform sliding motion. When the surfaces slide copulation to one another, the friction force is proportional to the normal force and is independent of both the contact area and the speed of sliding. The dimension of the normal force and friction force is called the coefficient of friction and depends on the genius of the two surfaces. In inclined surface the coefficient of friction is the sunburn of the angle of repose or angle of inclination. The frictional force is smaller after the motion has started than it is when the two objects ! are both at rest....If you want to get a integral essay, place it on our website: OrderEssay.net

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