Kinematics Position To specify a position vector you need to specify: • Origin • Distance • Direction If using a 3D right-handed coordinate system with the origin being the reference point for the position vector‚ it is enough to specify the coordinates x‚ y and z. For a moving object the position vector is a function of time. Velocity & Acceleration • Velocity is defined as the change in position over a change in time; thus the average velocity is and the instantaneous velocity is • For motion
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Angular Kinematics An object on a point that rotate a fixed axis has circular motion around the same axis. Linear quantities cannot be used for circular motion. This is due to the extended objects rotational motion rather that a particles linear motion. Circular motion‚ for this reason‚ is described in terms of the change in angular position. Except for the points on the axis‚ all the points on a rotating rigid object during any time interval move through the same angle. Many equations describing
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Introduction In this analysis‚ it depicts Caster Semenya where there are two illustrations shown where she came first in the 2009 Olympic and in the YOU magazine cover where she looks more feminine. In this paper it analyses the controversial issue regarding her background and how there have been many debates on the issue of her sex and whether she should compete or not as some think she has an unfair advantage. In this analysis‚ it argues that Caster Semenya should not conform to the norm of society
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ASSIGNMENT 2 Video Analysis of Vertical Jump – Due Mon 19th April (4pm) – Turnitin & Hard copy as ususal. The purpose of this assignment is to apply video collection techniques and kinematic analysis to sports performance. Whilst data collection was being carried out in groups‚ the data analysis and write up of the report must be an INDIVIDUAL ASSIGNMENT and must be completely your own work. Your report should include the following: Report Format Title Page: Include name‚ student number
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Lecture Outline Chapter 2 Physics‚ 4th Edition James S. Walker Copyright © 2010 Pearson Education‚ Inc. Chapter 2 One-Dimensional Kinematics Copyright © 2010 Pearson Education‚ Inc. Units of Chapter 2 • Position‚ Distance‚ and Displacement • Average Speed and Velocity • Instantaneous Velocity • Acceleration • Motion with Constant Acceleration • Applications of the Equations of Motion • Freely Falling Objects Copyright © 2010 Pearson Education‚ Inc. 2-1 Position
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The Controversy over Caster Semenya The article titled “Caster Semenya An the IOC’s Olympics Gender Bender” by Jesse Ellison reviews the controversy over Caster Semenya‚ the now 21-year-old intersexed athlete‚ and whether or not she should be allowed to compete as a female in international competition. After winning gold at the World Athletic Championship in Berlin‚ Semenya was put through various testing‚ until finally cleared as a woman. The belief was that she had an unfair advantage‚ due
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Wheelchair Casters Anyone who relies on a wheelchair for mobility knows how important the casters are for stability‚ surface control and comfort. The type of surface that a wheelchair is most often used on will dictate which wheelchair casters are best suited for the chair. Smaller casters function well on indoor and soft surfaces‚ while they also make turning and rotating easier. The larger casters are generally used for harder‚ uneven surfaces. Most casters are located on the front of a wheelchair
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2.) A cam with a roller follower has the follow particulars. i) Outstroke during first 150ᴼ of cam rotation ii) Dwell during next 30ᴼ of cam rotation iii) Return stroke during next 150ᴼ of cam rotation iv) Dwell during next 30ᴼ of cam rotation Base circle radius is 50mm‚ roller radius is 10mm. The follower moves with simple harmonic motion. Stroke length is 50mm. Draw the cam profile when‚ 1. The follower axis passes through the cam axis 2. The follower axis passes
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Kinematics is motion. We are in a world full of motion. You jump up‚ and there is a counteracting force that will move you down. Drop a ball‚ and the ball will fall to the ground. Push on a shopping cart‚ and the cart moves forward. These are all examples of motion‚ but there is a lot more to it than just being at rest or being in motion. One example of kinematics in the real world is in roller coasters‚ a thrill-seeking pastime for many. First‚ to understand how a rollercoaster works‚ one must understand
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E102-MOTION ALONG A STRAIGHT LINE GUIDE QUESTIONS: 1. From the data obtained‚ what is the effect of the height of the track to the cart’s acceleration? The data shows that sinӨ‚ which is dependent on the height‚ is getting higher as acceleration is increasing. This implicates that when object is at higher altitude‚ its acceleration is faster. 2. From the data obtained‚ how is time‚ t related to the inclination of the track? Explain why? Time and position of velocity are interrelated to
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