THE UNIVERSITY OF HONG KONG DEPARTMENT OF MECHANICAL ENGINEERING Part I APPLIED DYNAMICS LAB (full report required) DYNAMICS OF A TROLLEY ON RAILS Based on document MGS/ID137/203 by Dr MG Sainsbury Modified in Feb 2007 & Jan 2008 by Dr L Huang and Mr WS Sze 1. Objectives (1) To measure the velocity and acceleration of a trolley as it descends on inclined track and is stopped by a nonlinear elastic arrester system. (2) To compare the measured acceleration‚ velocity and displacement with theoretical
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magnitude of the force‚ d is the object’s displacement‚ and is the angle between the direction of the force and the displacement . Solving simple problems requires substituting values into this equation. More complex problems‚ such as those involving friction‚ often require using Newton’s second law to determine forces. Example: An Eskimo returning from a successful fishing trip pulls a sled loaded with salmon. The total mass of the sled and salmon is 50.0 kg‚ and the Eskimo exerts a force of 120
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How a Pogo Stick Works The pogo stick is a mechanical device that utilizes the spring’s ability to store energy. In this paper I will explain how the toy uses the laws of physics to provide hours of fun. There are a lot of forces acting on you and the pogo stick as you bounce along. We’ll take an in depth look at all of these forces and what part they play in the overall functioning of pogo sticks. The physical aspects can be broken down into sections to get a better understanding of what is going
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Supplemental Problems A Glencoe Program Student Edition Teacher Wraparound Edition Teacher Chapter Resources Mini Lab Worksheets Physics Lab Worksheets Study Guide Section Quizzes Reinforcement Enrichment Transparency Masters Transparency Worksheets Chapter Assessment Teacher Classroom Resources Teaching Transparencies Laboratory Manual‚ Student Edition Laboratory Manual‚ Teacher Edition Probeware Laboratory Manual‚ Student Edition Probeware Laboratory Manual‚ Teacher Edition Forensics Laboratory
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and opposite and equal force on the bottle which pushes the bottle up (3rd law)‚ and the larger that force is‚ the faster it will accelerate and move (2nd law). Eventually the rocket reaches a peak height because external forces (air friction/drag and gravity) act on it (1st law). Now talk about what happens if we add too much water. The mass of the bottle will increase‚ so it takes a larger force to make it accelerate and hence it won’t go as high as when we give
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11 FREQUENTLY ASKED QUESTIONS For any other study information see the brochure my Studies@Unisa. 9 SMI181Q/101/2013 12 CONCLUSION We hope that you will enjoy this module and wish you success 13 ADDENDUM ADDENDUM A: COMPULSORY ASSIGNMENTS FOR FIRST SEMESTER SEMESTER 1 Assignment 1 Due date: 08 March 2013 Assignment Unique number: 748509 (Students registered for the first semester only) Instruction In preparing for this assignment do not rely only on the study guide. This assignment
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Kinetic Friction Objectives:- * Use a Dual-Range Force Sensor to measure the force of static friction. * Determine the relationship between force of static friction and the weight of an object. * Measure the coefficients of static and kinetic friction for a particular block and track. * Use a Motion Detector to independently measure the coefficient of kinetic friction and compare it to the previously measured value. * Determine if the coefficient of kinetic friction depends on
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car forwards. As the car rolls it loses energy but as “The Law of Conservation of Energy states that energy cannot be created or destroyed‚ just transformed from one form to another.” This energy has to go somewhere. In this case it is lost through friction between
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we test factors which affect friction. We pulled a wood block across a surface to determine whetherthe surface area ofthe block orthe type ofsurface affectsfriction. We found that the surface area of the block did not change the coefficient of kinetic friction‚ while the types of materialsin contact were directly related to the coefficient of kinetic friction. INTRODUCTION Friction is a part of our everyday life. Nearly every movement we make involves friction‚ and we have instinctively learned
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Activity 4. Friction is the resistance to motion of one object moving relative to another. [1] There are three laws of motion known today. These laws are: (A) frictional force being independent of the area of contact‚ (B) frictional force being proportional to the load‚ and (C) frictional force being independent of the speed of movement. [2] Friction may be subdivided into two types namely Static Friction and Kinetic Friction. Static force of friction is the force of friction between two objects
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