Lect01 - 8/29/2013 Prelecture Example General Physics I...

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8/29/2013General Physics ILecture 1Today's Concepts:a) Displacement, Velocity, Accelerationb) 1-D Kinematics with constant accelerationMechanicsLecture 1, Slide 1If you haven't done Prelecture 1 yet, please do so later todayMechanicsLecture 1, Slide 2Prelecture ExampleMechanicsLecture 1, Slide 3Prelecture ExampleMechanicsLecture 1, Slide 4DisplacementTime takenDisplacement and Velocity in One DimensionDefinition:Speed = |v(t)|Thev(t)vs.tplot is just theslopeof thex(t)vs.tplotDisplacement and Velocity in One DimensionPrelecture Question 1The graph represents the position as a functionof time for an object in one-dimensional motion.Identify which statement below correctlyidentifies the times at which the velocity of theobject isgreater than zero.A) The velocity is greater than 0 at t = 0 s and t = 4 s.B) The velocity is greater than 0 at t = 2 s.C) The velocity is greater than 0 at t = 0 s and t = 1 s.D) The velocity is greater than 0 at t = 3 s and t = 4 s.E) The velocity is greater than 0 at t = 0, 1, 3, and 4 s.
1MechanicsLecture 1, Slide 5MechanicsLecture 1, Slide 6

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