Lecture-04 - Free FreeFallandUp/DownThrow Lecture#04...

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ee Fall and Up/Down Throw Free Fall and Up/Down Throw Lecture #04 – Ch. 2.6 & 2.7 Physics 125–Fall 2010 Dr. Mike Melnichuk mmeln@umich.edu Office: 2409 Randall Lab phys125lecture@umich.edu ffice Hours: 2:00 :00 / Mon & Tue Rm 1416 Randall Lab Office Hours: 2:00 – 4:00 / Mon. & Tue. in Rm. 1416 Randall Lab.
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Applications of (1D) Linear Kinematics When dealing with (1D) linear motion in a gravitational field, m = g g = 9 8 and x is usually replace with the label y: ⎛⎞ GG G G G 2 a = g, g = 9.8 and x is usually replaced with the label y: s ⎜⎟ ⎝⎠ G ( ) () [] 0 00 v + v 1. y = y + t t displacement, velocity, time 2 2. v = G v + g t t velocity, acceleration, time G G 2 0 0 g 3. y = y + v t t + t t displacement, acceleration, time 2 −− G G 22 4. v = v + 2g y y displacement, speed, acceleration ⋅− G
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Free Fall 0 t 0 y G t a G v G y G 0 s 2 9.8 m/s 0 y + 0 m/s y + v t 0 v G 0 v= 0 m / s () + The 4 kinematic equations become: 0 y + 0 2 v 1. y = y t 2 v= 98m / s t ⎛⎞ ⎜⎟ ⎝⎠ 2 a 9.8 m/s =− ( ) 2 2 2. v = 9.8 m/s t 9.8 m/s 3. y = y t v 0 22 0 2 4. v = 2 9.8 m/s y y ; −− y + 0 here y y is negative.
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This note was uploaded on 12/08/2011 for the course PHYSICS 125 taught by Professor Unknown during the Fall '08 term at University of Michigan.

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Lecture-04 - Free FreeFallandUp/DownThrow Lecture#04...

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