Lab Manual 2005

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$Y:\How to solve 2 dimension relative velocity problems.wpd$

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Kinematics(ULA)Situation: Consider driving on a long and straight section of highway using cruise control.We could describe this as motion with a steady pace. (The speedometer always readssome steady value.)Now consider starting a car from a stoplight. How does this motion differ fromcruising along the Trans-Canada? Is stopping a car at a red light fundamentally differentfrom starting? Here we are dealing with an object whose speed is steadily changing.The general purpose of this lab is to formally describe the different types ofmotion. We are concerned with a description of “how” the object moves and are notconcerned with “why” it moves.Materials:A motion detector, metre stick, dynamic cart, track, MPLI and GraphicalAnalysis.Model 2 (Uniform Linear Acceleration)Purpose:To find a mathematical model that describes the relationship between distance andtime, for all objects with steadily increasing motion.Procedure:• Enter MPLI and open a file called “Kinematics.exp”. Calibration may have beencompleted by demonstrator.• The simplest way to get an object to increase (or decrease) its speed at a “steady” rateis to allow it to roll freely down (or up) an incline. We will use the collision cart rolling onour track as the object and use the motion detector with the MPLI to collect our data.• Set up the track with a slight incline. Place the detector at the high end and point it atthe cart. Clear the surrounding area of possible reflectors. To collect data, place your cart40 cm in front of the detector (start line).• Click on the start button and allow your object to roll down the track. Try a fewpractice runs before collecting the data. The trick is to release the cart as you hear themotion detector begin to click.• When the data collection is complete, draw a line of best fit for the graph.→ click on Analyse in the pull down menu. Select Automatic Curve Fittingand choose the model that best represents your graph (see Appendix A).Remember, if the trend is horizontal use statistics.Have your graph checked by an instructor. When you are given the OK, print the graph.- 9 -
Page 1 and 2: Data AnalysisSituation: This is an
Page 3 and 4: Part 2 (Use Data Set 2)1. Identify
Page 5 and 6: Kinematics(ULV)Situation: Consider
Page 7: 7. Calculate the area under the vel
Page 11 and 12: 7. What does the area represent?8.
Page 13 and 14: Projectile SimulationSituation: Pro
Page 15 and 16: DATADot # Time (s) Horizontalx (m)0
Page 17 and 18: 10. What is the velocity at 2.0s ?
Page 19 and 20: Relative Velocity SimulationSituati
Page 21 and 22: → It is also convenient to have v
Page 23 and 24: 4. Considering delta notation, dete
Page 25 and 26: Analysis:1. What does the slope of
Page 27 and 28: Constant Net Force ModelSituation:
Page 29 and 30: Part 1: Vary the force applied whil
Page 31 and 32: 4. According to 3b what are the uni
Page 34 and 35: Materials:Purpose:A force sensor, w
Page 36 and 37: 7. Given that two objects of equal
Page 38 and 39: Part 1: Varying the mass.• Enter
Page 40 and 41: Part 3: Varying the radius.• Ente
Page 42 and 43: 1. A 25.0 kg child on a merry-go-ro
Page 44 and 45: These concepts are merely an outgro
Page 46 and 47: Part 2Procedure: Collisions between
Page 48 and 49: Part 3Procedure: Referring to the c
Page 50 and 51: 2. As a ball falls toward earth, it
Page 52 and 53: →Run the experiment to collect da
Page 54 and 55: → Verify Conservation of Energy w
Page 56 and 57: →Locate, on the track, each posit
Page 58 and 59:
• We need to provide a “control
Page 60 and 61:
3. Can you rewrite the equation fro
Page 62:
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Lab Manual 2005

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