Created by alex.examtime9373
almost 6 years ago


DistanceTime GraphsPlotting a graph of distance from a given point against time can be useful in illustrating different types of motion
The body starts moving from point A and moves towards point B very quickly The steeper the graph, the higher the slope, and the body is moving faster At point C it has a constant velocity Constant velocity means that the body has no acceleration A horizontal graph indicates that the body is stationary From point D to point E the body is returning to the start
VelocityTime GraphsWe are interested in graphs that involve a constant acceleration throughout or ones where the acceleration changes instantly from one value to another
The slope is equal to the velocity Slope = (y₂  y₁)/(x₂  x₁) = (s₂  s₁)/(t₂  t₁) = s/t = v
Time (in seconds) is plotted on the xaxis Distance (in metres) is plotted on the yaxis
Velocity (in metres per second) is plotted on the yaxis Time (in seconds) is plotted on the xaxis
The slope is equal to the acceleration Slope = (y₂  y₁)/(x₂  x₁) = (v₂  v₁)/(t₂  t₁) = (v  u)/t = a
The area under the graph is equal to the distance travelled Area = area of rectangle + area of triangle
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