Chapter_2_pre-lecture

Chapter_2_pre-lecture - Particle model the moving object is...

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1         • 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   • Average velocity • Average Speed         • Running to your airport gate you missed the rest room.
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  • Instantaneous velocity • Instantaneous speed is the magnitude of the instantaneous velocity.   t
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Chapter_2_pre-lecture - Particle model the moving object is...

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