Question: 1. Which person(s) changes direction during the time of motion? 2. Which person(s) is/are not moving? 3. Which person has the greatest average speed? 4. Which person(s) has/have a constant‚ positive acceleration value? 5. Which person has the greatest magnitude of acceleration? 1. C 2. none 3. E 4. D reason: lets say initial vel = -100‚ and final velocity = -50 -> a = vf – vi/t = -50 – (-100) = +50/t 5. C (largest change in velocity) EXAMPLE
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Free-Fall Acceleration Laboratory Help Sheet * Design an experiment :-UNIT 2 Lesson 3 page 1 * Hypotheses UNIT 2 Lesson 3 page 2 How do you think the free fall acceleration will be different on Earth‚ Moon and Mars and why? * Data collection and organization. UNIT 2 Lesson 3 page 3‚4 EARTH Time (s) | 0 | 0.2 | 0.4 | 0.6 | 0.8 | 1.0 | Distance (m) | 0 | x | | | | | Average Velocity m/s | 0 | A | B | | | | Acceleration m/s/s | 0 | | C | | | | Example
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very long time [d] the velocity of the particle will become u/2 after time 1/α Q.2 A particle moves along the xaxis as x = u(t-1)2 + a(t-3)3 [a] initial velocity of the particle is u [b] the acceleration of the particle is a [c] the acceleration of the particle is 2a [d] the particle is at the origin at time t=3 seconds Q.3 A particle is projected vertically upwards [a] the speed decreases uniformly with distance [b] the speed decreases
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fFree-Fall Acceleration Laboratory LAB REPORT This is an EXAMPLE of this assignment and what is expected.- DO NOT COPY the information on this example. The information on here is not the correct answers. You will get no credit for copying. 1. Design an Experiment 5 points I would use three different objects. My objects would be different shapes‚ difference sizes and difference masses. I would measure the time it took them to fall form a balcony to the ground
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KINEMATICS IN ONE DIMENSION chapter Section 2.1 Displacement Section 2.2 Speed and Velocity 1. A particle travels along a curved path between two points P and Q as shown. The displacement of the particle does not depend on- Q (a) The location of Q. (b) The location of P. (c) The direction of Q from P. P (d) The distance traveled from P to Q. Ans. (d) 2. For which one of the following situations will the path length
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Acceleration vs. Time Graphing Name: Morgan Wilkins Go to http://phet.colorado.edu/en/simulation/moving-man and click on Run Now. Objectives: • To predict‚ sketch and test acceleration vs. time kinematics graphs • To review predicting and sketching distance vs. time and velocity vs. time kinematics graphs PROCEDURE: 1. Begin by making charts like the one below for each of the following a-d My Prediction / Actual Graph a. The man walks slowly to the house from the origin. Position –Time Graph
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brakes is 0.75 s. [Answer: 70 m] 3. An underground train on the Mass Transit Railway moves away from a station with an initial acceleration of 0.9 m/s2. The acceleration decreases uniformly with time until after half a minute it is 0.3 m/s2. Calculate the speed reached and the distance travelled during this time. [Answer: 18 m/s‚ 315 m] 4. The magnitude of the acceleration and deceleration of an express lift is limited to 0.4 ‘g’‚ and the maximum vertical speed is 400 m/min. Calculate the minimum
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Lab II‚ Problem 3: Projectile Motion and Velocity Oct. 06‚ 2013 Physics 1301W‚ Professor: Hanany‚ TA: Vladimir Abstract A ball is tossed obliquely. The vectors of position and velocity are measured. The acceleration is calculated. Introduction A toy company is now making an instructional videotape on how to predict the position. Therefore‚ in order to make the prediction accurate‚ how the horizontal and vertical components of a ball’s position as it flies through the air should
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constant‚ velocity is not. Centripetal Acceleration‚ – acceleration that maintains the object along a circular path directed towards the center. Also called as radial acceleration. In 1673‚ Christian Huygens‚ determined the following relationships. Velocity‚ Where‚ r = radius of curvature/path‚ t = time/period. Frequency (f) – number of revolutions of cycle completed per unit time. So‚ Expressing centripetal acceleration in terms of frequency‚ In
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a. Speed‚ velocity and acceleration Title: Linear Motion Main Concepts: force‚ velocity‚ speed‚ and acceleration Instructional Objective(s) UKDs: As a result of this lesson students will: Understand THAT… Forces affect the speed of an object Acceleration relates to speed Velocity and acceleration are not the same thing Know … The definition of speed‚ velocity and acceleration Velocity
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