Lecture2-2A_000

Lecture2-2A_000 - Today's Lecture Motion in a Line, Vectors...

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Today Today s Lecture s Lecture Motion in a Line, Motion in a Line, Vectors and Vector Properties Vectors and Vector Properties Vector Description of Motion Vector Description of Motion
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Example: Velocity Needed to Throw a Stone Example: Velocity Needed to Throw a Stone a Height a Height h h and the Time to Reach and the Time to Reach h h . . Last time we found that the minimum initial velocity required to reach a height h was given by: V i 2 gh And the time to reach a height h was given by: t V i g The quadratic equation required to find this time is h V i t 1 2 gt 2 Which has as a solution: t V i V i 2 2 gh g or t V i g The minus sign in front of the sqrt applies on the way up and the plus sign on the way down.
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Example Example Overtake the Speeder Overtake the Speeder A speeder passes a stationary police car traveling at a velocity The police car pursues from rest with a uniform acceleration of 1) When the officer catches the speeder how far have they traveled, and
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This note was uploaded on 04/16/2008 for the course PHYS PHYS2A taught by Professor Hicks during the Spring '08 term at UCSD.

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Lecture2-2A_000 - Today's Lecture Motion in a Line, Vectors...

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