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Physics Topics. How Are Speed and Velocity Related?. Start Finish. Speed and Velocity. displacement. total. total. distance. =. =. Average. velocity. Average. speed. time. time. Is it possible to move with constant speed but not constant velocity?.
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Physics Topics How Are Speed and Velocity Related? Phabulous Physics: Introduction
Start Finish Speed and Velocity Phabulous Physics: Introduction displacement total total distance = = Average velocity Average speed time time Is it possible to move with constant speed but not constant velocity? Yes. (Cruising at 55 mph around a corner changing direction = changing velocity) Time = 1 min 18 sec = 500 m Is it possible to move with constant velocity but not constant speed? 500 m = = average speed 6 . 4 m s 78 s 0 m No. (A change in speed would cause a change in velocity.) = = average velocity 0 m s 78 s 8
Acceleration Phabulous Physics: Introduction • Positive acceleration means increasing velocity • Negative acceleration means decreasing velocity
Five Important Equations Phabulous Physics: Introduction Variable That’s Missing #1 #2 #3 #4 #5
Derivation of Equations 3 & 4 Phabulous Physics: Introduction
Derivation of Equation 5 Phabulous Physics: Introduction
Displacement Displacement Displacement Time Time Time Velocity Velocity Velocity Time Time Time Acceleration Acceleration Acceleration Time Time Time Graphs Phabulous Physics: Introduction 123546987
Displacement Displacement Displacement Time Time Time Velocity Velocity Velocity Time Time Time Acceleration Acceleration Acceleration Time Time Time Graphs Phabulous Physics: Introduction 231456897
Displacement Displacement Displacement Time Time Time Velocity Velocity Velocity Time Time Time Acceleration Acceleration Acceleration Time Time Time Graphs Phabulous Physics: Introduction 123654897
Displacement Displacement Displacement Time Time Time Velocity Velocity Velocity Time Time Time Acceleration Acceleration Acceleration Time Time Time Graphs Phabulous Physics: Introduction 123654789
Projectile Motion Phabulous Physics: Introduction