Kinetic Friction Experiment #13 Joe Solution E01234567 Partner- Jane Answers PHY 221 Lab Instructor- Nathaniel Franklin Wednesday‚ 11 AM-1 PM Lecture Instructor – Dr. Jacobs Abstract The purpose of this experiment was to examine kinetic friction and what factors affect it. We pulled a wood block across a surface to determine whether the surface area of the block or the type of surface affects friction. The surface area did not appear to affect friction‚ since there was a small percent difference
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Name:______________________________Period:______ The Ramp (and Friction) PhET Simulation Lab go to: phet.colorado.edu/en/simulation/ramp-forces-and-motion Introduction: When an object is dragged across a surface‚ the force of friction that must be overcome depends on the normal force as F=uN and the normal force is given by N= Wy‚ the vertical component of weight pointing perpendicular to the surface. When the angle of an inclined plane changes‚ the normal force changes and so does the friction. In this lab‚ you will change the
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CLUTCH | 1. INTRODUCTION Friction is to be avoided in some parts of machines‚ but is wanted in such items as clutches‚ brakes and belt-driven pulley systems. The apparatus used for this experiment is a simulation of a clutch‚ the pressure being provided by vertical weight on a plate. In engaging a clutch between a running engine and a stationary machine there is bound to be some wear‚ and it is evident that the wear must be uniform on the surface of the friction plate. As wear is proportional
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IB Friction Lab Write Up 3. The slope of my graph represents the constant value for myu as the Normal Force and the force of friction are constantly changing. 4. The kinetic slope is the biggest by far because it represents the less coefficient of friction it has to overcome to move easier. 5. According to my data table‚ an increase in weight always‚ without fail‚ creates a greater force of friction. 6. An increase in weight does not affect the coefficient of friction by also increasing
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Lecture 4 Application of Newton’s Law Outlines 1. Newton’s third law 2. Free body diagram 3. Equilibrium In Translational Motion 4. Non - Equilibrium In Translational Motion 1.0 Newton’s 3rd Law For every action there is an equal and opposite re-action. 1.0 Newton’s 3rd Law Cont. If object 1 and object 2 interact‚ the force exerted by object 1 on object 2 is equal in magnitude but opposite in direction to the force exerted by object 2 on object 1. Equivalent to saying a single isolated
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this time‚ the car moves 25.0 m. If friction between the car and the road is what is the final speed v of the car? What horizontal force did he exert on the car? negligible‚ WWW.MIAMI-BEST-MATH-TUTOR.COM PHYSICS.I.MORE.ON.WORK.ENERGY.7.2.PRACTICE.PROBLEMS PAGE 3 OF 8 4. A 40.0-kg box initially at rest is pushed 5.00 m along a rough‚ horizontal floor with a constant applied force of 130 the work done by the applied force‚ N. If the coefficient of friction between the box and the floor is 0
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improvement methods and precautions to avoid polishing of asphalt pavements are proposed. Introduction During the entire life cycle of a pavement‚ highway agencies are expected to monitor and maintain an adequate surface roughness to facilitate friction between car tires and pavement surface. Polishing is a smooth slippery surface caused by repeated wear on the pavement due to traffic and even heavy pedestrian load on parking lot pavements. This behavior of the pavement will cause its skid
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INTRODUCTION Friction is a force (measured in Newtons) acting along the surfaces of two objects in physical contact that impedes the relative motion of these objects (the motion of one with respect to the other). As such‚ it can be said that friction always acts opposite the motion of the object or the force applied. There are two main types of friction: Static friction: the frictional force that opposes any attempt to move a stationary object along a surface. Kinetic friction: this frictional
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exerting a maximum force of 1‚000‚000 N. A cylindrical work part is to be cold upset forged. The starting part has a diameter of 30 mm and a height of 30 mm. The flow curve of the metal is defined by K=400 MPa and n=0.2. Suppose that the coefficient of friction between the work part and the die is 0.1. a. In Excel‚ plot a graph of forging force vs. work height for the values of work height from 20 mm to 15 mm. b. Determine the maximum reduction in height to which the part can be compressed with this particular
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the characteristics of dry friction and belt friction will complete the analysis of loading on an object. Towards the end‚ the concept of center of gravity‚ center of mass‚ centroid and moment of inertia‚ together with its application are discussed. Course Objectives : 1) To learn the fundamental concepts and principles of statics to solve problems that involves force and moment acting on particles and rigid bodies in equilibrium. 2) To apply the law of friction to bodies in equilibrium.
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