velocity time graphs 1

  • Created by: tia5sos
  • Created on: 15-10-20 17:00
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  • velocity - time graphs
    • can be used to find acceleration
      • gradient = acceleration
      • flat sections represent steady velocity
      • the steeper the graph, the greater the acceleration or deceleration
      • uphill sections are acceleration
      • downhill sections are deceleration
      • a curve means changing acceleration
      • the area under any section of the graph (or all of it) is equal to the distance travelled in that time interval.
    • you can find the acceleration, velocity and distance travelled from a velocity - time graph:
      • 1. the acceleration represented between 0s and 2s on the graph is: acceleration = gradient = change in the vertical divided by change in the horizontal = 3 over 2 = 1.5m/s
      • 2. the velocity at any time is simply found by reading the value off the velocity axis.
      • 3. the distance travelled in any time interval is equal to the area under the graph. for example, the distance travelled between t=8s and t=10s is equal to the shaded area, whcih is 10m (5m/s x 2s)


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