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Instantaneous velocity

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  1. Instantaneous velocity • Instantaneous velocity • Slope of • Line is used for Tangential Velocity position time

  2. Graphing Speed: Distance vs. Time Graphs Speed = Slope = Rise/Run Rise

  3. Graphing Speed: Distance vs. Time Graphs Speed = Slope = Rise/Run Rise=? 600 km 3 h

  4. Graphing Speed: Distance vs. Time Graphs Speed = Slope = Rise/Run Rise=? 600 m 3 minutes Rise/Run = 600 km/3 hr = 200 km/hr

  5. Different Slopes Slope = Rise/Run = 0 km/1 hr = 0 km/hr Rise = 2 km Run = 1 hr Rise = 0 km Run = 1 hr Slope = Rise/Run = 2 km/1 hr = 2 km/hr Rise = 1 km Run = 1 hr Slope = Rise/Run = 1 km/1 hr = 1 km/hr

  6. Question • Below is a distance vs. time graph of my position during a race. What was my AVERAGE speed for the entire race? Average Speed = Total distance/Total time = 12 km/6 hr = 2 km/hr Rise = 12 km Run = 6 hr

  7. Question • Below is a distance vs. time graph for 3 runners. Who is the fastest? Leroy is the fastest. He completed the race in 3 hours

  8. Question • What does the slope of a distance vs. time graph show you about the motion of an object? • It tells you the SPEED