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Velocity and Speed Graphically

Velocity and Speed Graphically. Graphically . Velocity can be shown graphically by plotting position vs time Slope of a position-time graph is velocity. Data for Car. Plot. Velocity is Slope. 50m – 0m. V = . = 10m/s. 5s – 0s. Practice – Describe the motion shown in the graph.

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Velocity and Speed Graphically

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  1. Velocity and Speed Graphically

  2. Graphically • Velocity can be shown graphically by plotting position vs time • Slope of a position-time graph is velocity

  3. Data for Car

  4. Plot

  5. Velocity is Slope 50m – 0m V = = 10m/s 5s – 0s

  6. Practice – Describe the motion shown in the graph

  7. Graph Walking • Walk to produce a graph curving upward • Walk to produce a graph curving downward • Walk to produce an upside-down parabola • Walk to produce a sine wave

  8. Instantaneous Velocity • If the graph is not a straight line, the velocity is constantly changing • You can find the velocity at any specific point • You do this by finding the slope of the line tangent to the curve

  9. Changing Velocity Plot

  10. What is Velocity at 3 Second? 30m – 5m v (at 3s) = = 7.5m/s 4s – 2s

  11. At what point is the object moving the fastest? • At what point is the object moving the slowest?

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