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Discussion-03

# Discussion-03 - Linear Linear(1D)Kinematics Discussion#03...

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Linear (1D) Kinematics Di i #03 Ch 2 1 2 5 Discussion #03 – Ch. 2.1 – 2.5 Physics 125 – Fall 2010 Dr. Mike Melnichuk [email protected] Office: 2409 Randall Lab [email protected] Office Hours: 2:00 4:00 / Mon & Tue in Rm 1416 Randall Lab Office Hours: 2:00 – 4:00 / Mon. & Tue. in Rm. 1416 Randall Lab.

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The (4) Equations of (Linear) Kinematics There are four equations connecting uniquely three out of four physical quantities: DISPLACEMENT VELOCITY ACCELERATION and TIME: ( ) ( ) [ ] 0 quantities: DISPLACEMENT, VELOCITY, ACCELERATION and TIME: v + v 1 di l l i i G G G G 0 0 1. x = x + t t displacement, velocity, time 2 ( ) [ ] 0 2. v = v + a G G G 0 t t velocity, acceleration, time a G ( ) ( ) [ ] 2 0 0 0 0 3. x = x + v t t + t t displacement, acceleration, time 2 G G G ( ) [ ] 2 2 0 0 4. v = v + 2a x x displacement, speed, acceleration G G G
NOTE: Uniform (Linear) Motion 2 m When the acceleration is zero a = 0 the (linear) velocity remains s G [ ] 0 constant in time: v = v UNIFORM (LINEAR) MOTION .

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