Q.1 A particle is moving in a straight line with initial velocity u and retardation αv‚ where v is the velocity at any time t [a] the particle will cover a total distance u/α [b] the particle will come to rest after 1/α [c] the particle will continue to move for a 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
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Uniform linear acceleration Introduction This topic is about particles which move in a straight line and accelerate uniformly. Problems can vary enormously‚ so you have to have your wits about you. Problems can be broken down into three main categories: Constant uniform acceleration Time-speed graphs Problems involving two particles Constant uniform acceleration Remember what the following variables represent: t = the time ; a = the acceleration ; u = the initial speed ; v = the final
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Motion 1 The table gives values of distance and time for a child travelling along a straight track competing in an egg and spoon race. Time (seconds) |0 |5 |10 |15 |20 |25 | |Distance (metres) |0 |8 |20 |20 |24 |40 | | a Copy the graph axes below on to graph paper. Plot a graph of distance against time for the child. [pic] (3) b Name the dependent variable shown on the graph. (1) c What type of variable is this? (1) d Use your graph to estimate
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design‚ analysis (kinematic and dynamic) and control of a 6-DoF Stewart Platform. While assisting the ongoing project of the Simulator Development Division of the army‚ which is based on the design and development of the Stewart Platform‚ it also aims to come up with a set of results and analysis which will help in all future work related to the Stewart Platform. A CAD model was first designed and built based on static load conditions after which the task of detailed kinematic and dynamic analysis
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Physics Practical TAS Lab Report Experimental test of Fc=mrω2 by whirling a rubber bung CHUI‚ WING LAM CYNTHIA 6B (3) GROUPMATES: ANDY TAM‚ TOMMY LO Date of experiment: 26-01-2011 Date of submission: 21-02-2011 I. Objective For a body moving in a uniform circular motion‚ measure the centripetal force acting on it and compare it with the theoretical value Fc=mrω2. II. Theory |Fc=mrω2 =Mg |where |Fc is the centripetal force | |
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SECTION 2 SECTION REVIEW 1. Marissa’s car accelerates uniformly at a rate of +2.60 m/s2. How long does it take for Marissa’s car to accelerate from a speed of 24.6 m/s to a speed of 26.8 m/s? 2. A bowling ball with a negative initial velocity slows down as it rolls down the lane toward the pins. Is the bowling ball’s acceleration positive or negative as it rolls toward the pins? 3. Nathan accelerates his skateboard uniformly along a straight path from rest to 12.5 m/s in 2.5 s. a. What is Nathan’s
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Chapter 2: 8. An 18-year-old runner can complete a 10.0-km course with an average speed of 4.39 m/s. A 50-year-old runner can cover the same distance with an average speed of 4.27 m/s. How much later (in seconds) should the younger runner start in order to finish the course at the same time as the older runner? *13. You are on a train that is traveling at 3.0 m/s along a level straight track. Very near and parallel to the track is a wall that slopes upward at a 12° angle with the horizontal
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Name _ ___________________ Motion in 2D Simulation Go to http://phet.colorado.edu/simulations/sims.php?sim=Motion_in_2D and click on Run Now. 1) Once the simulation opens‚ click on ‘Show Both’ for Velocity and Acceleration at the top of the page. Now click and drag the red ball around the screen. Make 3 observations about the blue and green arrows (also called vectors) as you drag the ball around. 1. The green vector moves in the direction of the mouse until the red ball catches up to
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Equations of Motion Worksheet 1. A car moving at a velocity of 25 m/s‚ accelerates at a rate of 6 m/s2. Find its velocity after 3s. 2. An object is dropped from rest. Calculate its velocity after 2.5s if it is dropped: a. On Earth‚ where the acceleration due to gravity is 9.8m/s2. b. On Mars‚ where the acceleration due to gravity is 3.8m/s2. 3. A motorbike is travelling with a velocity of 3m/s. It accelerates at a rate of 9.3m/s for 1.8s. Calculate the distance it travels in this time. 4. A Tesla
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1 Centripetal Acceleration Imagine a marble sitting on a rotating turntable. The different vectors representing velocity for the travelling marble are shown below. Notice that the size of the vector remains the same but the direction is constantly changing. Because the direction is changing‚ there is a ∆v and ∆v = vf - vi ‚ and since velocity is changing‚ circular motion must also be accelerated motion. vi ∆v vf -vi vf2 If the ∆t in-between initial velocity and final velocity
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