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# chap2 - Motion in One Dimension Position Velocity and Speed...

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1 Motion in One Dimension Position, Velocity, and Speed Particle model – the moving object is described as a point-like particle with mass m . Position x of the particle is its location at time t . Knowing the position x(t) completely determines its motion … Displacement Δ x = x f – x i is the change in position in a given time interval. Distance is the length of the path followed by the particle.

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2 Position-time Graph Average velocity Average Speed Running to the Gate with a Problem … Running to your airport gate you forgot to get coffee...
3 Instantaneous Velocity Instantaneous velocity Instantaneous speed is the magnitude of the instantaneous velocity. Some Calculus t A t x × = ) ( 2 ) ( t B t x × =

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4 Consider the following position-time graph 1 2 3 29 41 226 t v 1. t v 2. t v 3. Which of the following velocity time graphs best describes the particle’s motion? t x Velocity-time Graph, Acceleration Average acceleration Instantaneous acceleration
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chap2 - Motion in One Dimension Position Velocity and Speed...

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