lecture01 - P3 Average velocity (in a time interval): t x t...

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Physics 131 Spring 2008 Dongping Zhong Lecture 1 (Monday, March 24) Motion in one Dimension (1-D) Key concepts: time, position, displacement, speed, velocity, acceleration Page 1
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P2 Time: repetition of some periodic event (t: s) Position: distance (length) from one origin (s: m) Displacement: change in position 1 2 x x d v v v = Motion: displacement as a function of time x=x(t)------Table, Graph, Function…. . Examples (given in the lecture) (pick a reference and measure)
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Unformatted text preview: P3 Average velocity (in a time interval): t x t t t x t x V avg = = v v v v 1 2 1 2 ) ( ) ( Note: maybe +, - ,or 0 Instantaneous Velocity: dt x d t x t V V t v v v v = = = lim ) ( Speed: tot tot t S V = Always 0 Examples (m/s) (m/s) P4 Instantaneous acceleration: 2 2 dt x d dt V d a v v v = = = a v . const V = v Average acceleration: t V a avg avg = v v Examples ) / ( 2 s m...
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lecture01 - P3 Average velocity (in a time interval): t x t...

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