lecture05 - velocity and acceleration ? P6 1. Speed up and...

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Physics 131 Spring 2008 Dongping Zhong Lecture 5 (Wednesday, April 2) Page 1 Relative motion
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P2 X y ` ) ( i v ) ( j v P r v 2-Diemension motion j a i a j dt dV i dt dV j dt y d i dt x d dt V d dt r d a j V i V j dt dy i dt dx dt r d V j t y i t x t r r y x y x y x v v v v v v v v v v v v v v v v v v v + = + = + = = = + = + = = + = = 2 2 2 2 2 2 ) ( ) ( ) (
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P3 1 r v 2 r v r v y x j v i v j dt dy i dt dx dt r d v j t y i t x t r v j y i x r r r y x avg v v v v v v v v v v v v v v v + = + = = + = = + = = 1 2 1 v v 2 v v avg v v
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P4 1 v v 2 v v v v 1 v v 2 v v a v a v // a v j a i a j dt dv i dt dv dt v d a t v a v v v y x y x avg v v v v v v v v v v v + = + = = = = 1 2
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P5 Ex: . ) 7 6 ( ) 5 2 ( ) ( 4 3 meter of unit in j t i t t t r r v v v v + = = Find out: At t=2s, where is the position (r, θ ) and what are the
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Unformatted text preview: velocity and acceleration ? P6 1. Speed up and curve upward. 2. Speed up and curve downward. 3. Slow down and curve upward. 4. Slow down and curve downward. 5. Move to the right and down. This acceleration will cause the particle to...
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This note was uploaded on 04/18/2008 for the course PHYS 131 taught by Professor Reay during the Spring '08 term at Ohio State.

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lecture05 - velocity and acceleration ? P6 1. Speed up and...

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