LEC 01 (Introduction 051)

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Dynamics

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  • King Fahd University of Petroleum & MineralsMechanical EngineeringDynamics ME 201BYDr. Meyassar N. Al-Haddad

  • OutlineDepartment MissionTextbookGrading systemHomeworkAttendanceExamsCourse CoverageSection 12.1 IntroductionVector and Scalar reviewDistance and Displacement reviewSpeed and VelocityExamples

  • Department MissionThe department is committed to providing highest quality education in mechanical engineering, conducting world-class basic and applied research, addressing the evolving needs of industry and society, and supporting the development of more competitive and new industry in the Kingdom of Saudi Arabia.

  • TextbookEngineering Mechanics, DynamicsR. C. Hibbeler, 10th Edition &Dynamic Study Pack

  • Grading system5%Attendance10%Homework Assignments20%1st Major Exam20%2nd Major Exam10%Quizzes35%Final Exam

  • Homework Homework problems are pre-assigned in syllabus 5 problems every week. All homework problems assigned during a given week are due in class on the following Monday unless stated otherwise. Late Homework will not be accepted

  • Attendance Attendance will be checked during each lecture. The only acceptable excuse for absence is the one authorized by the Deanship of Student Affairs on their prescribed form. This excused should be presented to the instructor no later than one week following the resumption of class attendance. For any unexcused absence, 0.5 marks will be deducted from the attendance grade. Any student having more then 9 unexcused absences will receive a grade of DN for the course.

  • Office HoursOffice Hours : 10:00 11:00 Every DayLocation Building 22Room233Phone 860-4344

  • Exam Days1st Major Exam (20%)March 22nd, 2005 (Room 6:125) 2nd Major Exam (20%) May- 9th, 2005 (Room 6:125) Final Exam (35%)To Be Arranged by the registrar

  • Course coverage Kinematics of particle in various motion. (Chapter 12)Force and acceleration. (Chapter 13) Work and energy relations. (Chapter 14) Impulse and Momentum. (Chapter 15)Kinematics of a rigid bodies in plane motion. (Chapter 16)Force and acceleration of a rigid bodies . (Chapter 17) Work and energy relations of a rigid bodies. (Chapter 18) Impulse and Momentum of a rigid bodies (Chapter 19)

  • Areas of mechanics (Section12.1)

  • Areas of mechanics (section12.1)Statics (CE-201)- Concerned with body at rest Dynamics (ME-201)Concerned with body in motionKinematics, is a study the geometry of the motions, v, a2.Kinetics, is a study of forces cause the motion F, m, motion

  • Review of Vectors and ScalarsA Vector quantity has both magnitude and directionA Scalar quantity has magnitude only

  • Scalars (e.g)

    distancespeedmasstemperaturepure numberstimepressurearea, volumechargeenergyVectors (e.g.)

    displacementvelocityaccelerationforceweight (force)momentum

  • VectorsCan be represented by an arrow (called the vector)Length of the vector represents the magnitude of the quantitySymbols for vectors:

    (e.g. force) F ,or F (bold type)F2 F

  • Distance and Displacement8km = Distance3km = Displacement

  • Distance

    total length of path travelledmust be greater than (or equal to) magnitude of displacementonly equal if path is straightsymbol dDisplacement

    direct distanceshortest distance between two pointsdistance between start and finish pointsas the crow fliescan describe with only one directionsymbol ss = xfinal - xinitial

  • Average Speed and Average Velocity

  • ReviewavAre you going up or down?Are you speeding up or slowing down?What will your velocity be in 1 second?

  • Review

    avAre you going up or down?Are you speeding up or slowing down?What will your velocity be in 1 second?t=0

  • Review

    vAre you going up or down?Are you speeding up or slowing down?What will your velocity be in 1 second?t=1

  • Review

    vAre you going up or down?Are you speeding up or slowing down?What will your velocity be in 1 second?t=2

  • Review

    vAre you going up or down?Are you speeding up or slowing down?What will your velocity be in 1 second?t=3

  • Review

    vAre you going up or down?Are you speeding up or slowing down?What will your velocity be in 1 second?t=4

  • Review

    vAre you going up or down?Are you speeding up or slowing down?What will your velocity be in 1 second?t=5

  • Review

    vAre you going up or down?Are you speeding up or slowing down?What will your velocity be in 1 second?t=6

  • Bungee Jumping

  • Motion 1

  • Motion 2

  • Motion 3slowing

  • Motion 4bottom

  • Motion 5speeding up

  • Motion 6Still rising

  • Motion 7top

  • 1234567bottom

  • Thank you