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# Constant acceleration if acceleration is constant the

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Unformatted text preview: lowing kinematic equations describe 1D motion (omitting vector signs). a const . x (t ) xinitial vinitial t v (t ) vinitial at2 at v (t ) 2 2 vinitial 1 2 2 a ( x xinitial ) PHYS 1L03, Fall 2013, McMaster University, R. Nejat 11 One-Dimensional Motion • Uniform motion: v const. x xi One-Dimensional Motion vi vt vf • There are no fancy equations to memorize (all equations are given in tests and exam) • Uniform and non-uniform: x xi • Free Fall: a i g g • All of the Kinematics equations can be derived in a few lines of algebra from the definitions of displacement, velocity, and acceleration vi v f t 2 vavg t 9 .8 m / s 2 initial f final PHYS 1L03, Fall 2013, McMaster University, R. Nejat One-Dimensional Motion a • Constant acceleration: const . • Constant acceleration: How do we get those kinematics equations? Using only our definitions of x, v and a we can come up with those equations: a vf ti vi vf at vi a (t f PHYS 1L03, Fall 2013, McMaster University, R. Nejat i initial f final ti ) at a const . How do we get those kinematics equations: xf xi xf xi...
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