Velocity-Time Graphs and Acceleration

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Velocity-Time Graphsand Acceleration
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What does a v-t graph look like?

• Time is marked on the horizontal axis and
  velocity is on the vertical.
• Graphs that represent an objects velocity versus
  its time.

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What can we determine from a velocity time graph?

• Velocity and speed
• Time
• Acceleration
• Displacement and distance

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What can we determine from a velocity time graph?

• Velocity - reading directly off the y-axis

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What can we determine from a velocity time graph?

• Time (read off the x-axis)

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What can we determine from a velocity time graph?

• Displacement area under the curve
• NOTE Area formulas
• Arearectangle length x width
• Areatriangle ½ base x height

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What can we determine from a velocity time graph?

• Acceleration v/t slope

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What can you find from a v-t graph

• Acceleration slope at a point on the graph (you
  may have to use a tangent)
• Average acceleration finding the slope of a
  segment (use the start and end points)

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Velocity-Time Graphs
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Interpreting v-t graphs

• Horizontal lines show uniform motion (constant
  speed and direction).
• Inclined lines show change in speed or direction,
  or both in other words accelerated motion.