9/9/200811The kinematics of motion in one dimensionProblem-solving strategiesFree fallChapter 2Motion in One DimensionTopics:2Different Descriptions of MotionMotion diagram (student walking to school)Table of dataGraph3Interpreting GraphsVelocity = slope of position-vs-time graph = rise / runv=DxDt=xf-xitf-ti4Uniform MotionStraight-line motion with equal displacements during any successive equal-time intervalsLmotion with constant velocityv=DxDt=xf-xitf-ti° Dx=vDt°xf=xi+vDtDemo: Motion sensor and RampAt what point is the object moving fastest, stopped, speeding up, slowing down. etc.6Here is a motion diagram of a car moving along a straight stretch of road:Which of the following position-versus-time graphs matches this motion diagram?Position-vs-time graph questionA.B.C.D.
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9/9/20082Here is a motion diagram of a car moving along a straight stretch of road:Which of the following velocity-versus-time graphs matches this motion diagram?Checking UnderstandingA.Slide 2-13B.C.D.8Sue moves according to the plot. What are her instantaneous velocities at t=2, 6, & 10 s?MOTION IN ONE-DIMENSION9A student drives along a straight road according to the plot. 1)True or 2)False: At t = 7 s the student is back at the same position she started from?1.True2.FalseChecking UnderstandingSlide 2-15A graph of position versus time for a basketball player moving down the court appears like so:Which of the following velocity graphs matches the above position graph?A.B.C.D.A graph of velocity versus time for a hockey puck shot into a goal appears like so:Which of the following position graphs matches the above velocity graph?Checking UnderstandingA.B.C.D.Slide 2-17Demo: Motion sensor and person walkingCan you match the graph