5. acceleration – change in speed over time (vector quantity) TWO types; a. Linear acceleration – speed up or slow down b. Centripetal acceleration – change direction B. Centripetal acceleration (ac) – acceleration changes due to change in direction. 1. Centripetal means center seeking 2. ac is always directed toward the center of the curved path (circle) 3. If an object is moving in a circle it will always have a centripetal acceleration 4. ac
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is freely falling with acceleration g‚ from the instant it is released until it strikes the ground. 4. The time it takes for the ball to hit the ground depends on v0 ‚ g and h. 004 10.0 points The velocity of a projectile at launch has a horizontal component vh and a vertical component vv . When the projectile is at the highest point of its trajectory‚ identify the vertical and the horizontal components of its velocity and the vertical component of its acceleration. Consider air resistance
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instantaneous center method‚ centroid. 9 Acceleration analysis Acceleration of a link‚ four bar mechanism‚ angular acceleration of links‚ acceleration of intermediate and offset points‚ slider crank mechanism‚ and Coriolis acceleration component‚ crank and slotted lever mechanism‚ Klein’s construction. 6 UNIT-III Cams Introduction‚ types of cams‚ types of followers‚ motion of the follower‚-uniform velocity‚ SHM‚ uniform acceleration and retardation‚ Cycloidal motion‚ profile of
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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‚ Distance‚ and Displacement Before describing motion‚ you must set up a coordinate system –
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ROTATIONAL MOTION PROBLEMS: 09-1 1) A grinding wheel starts from rest and has a constant angular acceleration of 5 rad/sec2. At t = 6 seconds find the centripetal and tangential accelerations of a point 75 mm from the axis. Determine the angular speed at 6 seconds‚ and the angle the wheel has turned through. |We have a problem of constant angular acceleration. The figure & coordinate system are |[pic] | |shown. Since a time
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follower axis passes by 20mm offset from the cam axis Draw also the velocity & acceleration diagrams when the speed of rotation of cam is 100rpm. GIVEN DATA: Roller follower; Ɵₒ=150ᴼ; Dwell=30ᴼ Ɵᵣ=150ᴼ; Dwell=30ᴼ; Base radius r=30mm Roller radius=10mm; stroke=50mm; N=100rpm Motion: Simple Harmonic Motion. To Find: i) To draw the cam profile ii) Velocity and acceleration 3.) A cam with flat faced follower has the following specifications i) Outstroke
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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 line points in the direction that the ball is going to go 2. The blue line changes the direction it points. 3. The blue line also changes size depending on the speed 2) Which color vector (arrow) represents velocity and which one represents acceleration? How can you tell?
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ENG EK 127 Fall 2012 Project # 3 Project development by Josh Koerpel Instructions: You may work alone‚ or in groups of 2 or 3. You are encouraged to work with classmates in your lab section. This project is due on Wednesday‚ December 12th‚ by 7:00PM. Please note that there are only 44 PCs in the lab and over 240 students in the class. Not everyone can be in the lab at the last minute! You will be graded on the correctness of your solution‚ and on your programming style. This includes using loops
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Motion. 5. Linear Displacement. 6. Linear Velocity. 7. Linear Acceleration. 8. Equations of Linear Motion. 9. Graphical Representation of Displacement with respect to Time. 10. Graphical Representation of Velocity with respect to Time. 11. Graphical Representation of Acceleration with respect to Time. 12. Angular Displacement. 13. Representation of Angular Displacement by a Vector. 14. Angular Velocity. 15. Angular Acceleration 16. Equations of Angular Motion. 17. Relation between Linear
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Faculty of Engineering and Technology (FET) PPH 0125 Mechanics Foundation in Engineering ONLINE NOTES Chapter 1 Physical Quantities Faculty of Engineering and Technology‚ Multimedia University‚ Jalan Ayer Keroh Lama‚ Bukit Beruang‚ 75450 Melaka‚ Malaysia. PPH0125 MECHANICS Contents 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Introduction to SI Units. Basic Quantities Derived Quantities Conversion of Units Scalar and Vector Quantity Factor of ten Simplification (Standard Prefixes) Dimension:
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