Displacement Speed and Velocity Average Velocity Instantaneous Velocity Average Acceleration Instantaneous Acceleration Equations of Linear Motions Motion Graphs Free Falling Objects under gravity Projectile Motion Uniform Circular Motion ASD 2011/12 KINEMATICS 1/23 PPH0095 MECHANICS Mind Map ASD 2011/12 KINEMATICS 2/23 PPH0095 MECHANICS OBJECTIVES Upon completion of this chapter‚ you should be able to: 1) 2) 3) 4) 5) define distance‚ displacement‚ velocity‚ acceleration
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CHAPTER 1: Introduction‚ Measurement‚ Estimating Answers to Questions 1. (a) Fundamental standards should be accessible‚ invariable‚ indestructible‚ and reproducible. A particular person’s foot would not be very accessible‚ since the person could not be at more than one place at a time. The standard would be somewhat invariable if the person were an adult‚ but even then‚ due to swelling or injury‚ the length of the standard foot could change. The standard would not be indestructible – the foot would
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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 predictions of various methods and discuss the physics learned. 2. Apparatus The test setup comprises a short inclined railway
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in velocity as time goes by Change in velocity as time goes by Review Acceleration: Magnitude or direction (not units) Direction only Magnitude or direction (not units) Direction only Acceleration means _______________________________________________ What CAN change for a velocity vector? _____________________________________ What IS changing when something moves in a circle? ____________________________ an object in motion continues in constant-velocity motion
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(convertible to height) of 1000‚ 900‚ and 800 milliliters. Two trials were conducted for each matrix. From the data‚ it was observed that as the initial concentration of slurry is increased‚ the initial settling velocities decrease. The initial height has no effect on the initial settling velocity but can affect the rate at which solids compact. However‚ it was found that how the height affects compaction can be unpredictable. For the design of a thickener using batch sedimentation data‚ the required
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Q.1 Q.8 (a) (a) Name three Muslim scientists? (3) Fill in the blanks:(1) (viii) The dimension of any physical quantity can always be expressed as some combination of the fundamental quantities. 1995 Q.1 (c) What are the dimensions of angular velocity “ω”? Show that the equation √ is (3) (1) dimensionally correct‚ where “T” is the time period of a simple pendulum of length “ ” at the place where acceleration due to gravity is “g”. Fill in the blanks:(v) Candela is the unit of intensity of light
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j D) 34.0 E) 1028 ^ ^ ^ ^ 5) ^ ^ 6) An object has a position given by r = [2.0 m + (5.0 m/s)t]i + [3.0 m - (1.0 m/s 2)t2 ]j. Determine the velocity of the object as a function of time. A) 5.4 m/s ^ ^ B) (5.0 m/s)i - [(1.0 m/s2 )t]j 6) C) 5.1 m/s D) (5.0 m/s)i - (1.0 m/s2 )j ^ ^ E) (5.0 m/s)i - [(2.0 m/s2 )t]j 7) An object has a velocity v 0 (t) = (3.00 m/s)i + (1.00 m/s)j at time t = 0.00 s. The acceleration of the object is a (t) = (2.00 m/s3 )ti + (1.00 m/s4 )t2j. If the object
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average velocity on this trip? Answer: 27 km/h 4. A bullet is fired through a board‚ 14.0 cm thick‚ with its line of motion perpendicular to the face of the board. If it enters with a speed of 450 m/s and emerges with a speed of 220 m/s‚ what is the bullet’s acceleration as it passes through the board? Answer: –550 km/s2 5. A particle confined to motion along the x axis moves with constant acceleration from x = 2.0 m to x = 8.0 m during a 2.5s time interval. The velocity of the particle
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straightforward mathematical relationships. These mathematical relationships are a recurring concept in the fields of Kinematics and Dynamics which focuses on ways in which objects/matter move whilst evaluating behaviours like displacement‚ acceleration and velocity (Wise Geek‚ 03-13). Kinematics derives its name from the Greek word for “motion” (kinema) (Sparknotes‚ 2011). This field is centred under a sub branch of mechanics which deals with pure motion‚ without reference/implication to the forces and masses
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GRAVITATION Kepler’s Laws Towards the end of the sixteenth century‚ Tycho Brahe collected a huge amount of data giving precise measurements of the position of planets. Johannes Kepler‚ after a detailed analysis of the measurements announced three laws in 1619. 1. The orbit of each planet is an ellipse which has the Sun at one of its foci. 2. Each planet moves in such a way that the (imaginary) line joining it to the Sun sweeps out equal areas in equal times. 3. The squares of the periods
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