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02_ChapSummary

02_ChapSummary - SUMMARY The goal of Chapter 2 has been to...

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Free fall is constant-acceleration motion with Motion on an inclined plane has The sign depends on the direction of the tilt. a s 5 6 g sin u . a y 5 2 g 5 2 9.80 m/s 2 S U M M A R Y The goal of Chapter 2 has been to learn how to solve problems about motion in a straight line. General Principles Kinematics describes motion in terms of position, velocity, and acceleration. General kinematic relationships are given mathematically by: Instantaneous velocity slope of position graph Instantaneous acceleration slope of velocity graph Final position Final velocity v f s 5 v i s 1 3 t f t i a s dt 5 v i s 1 U area under the acceleration curve from t i to t f s f 5 s i 1 3 t f t i v s dt 5 s i 1 U area under the velocity curve from t i to t f a s 5 dv s / dt 5 v s 5 ds / dt 5 Motion with constant acceleration is uniformly accelerated motion . The kinematic equations are: Uniform motion is motion with constant velocity and zero acceleration: s f 5 s i 1 v s D t v f s 2 5 v i s 2 1 2 a s D s s f 5 s i 1 v i s D t
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