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  • Created by: evelynn97
  • Created on: 08-04-14 08:24


  • On a distance-time graph a straight horizontal line represents a time where the object is stationary, when there is a straight line that slopes upwards it represents the object moving at a constant speed.
  • The gradient of a distance-time graph for an object represents the speed of the object.

speed (m/s)= distance travelled in metres (m) / time taken in seconds (s)


  • Velocity is speed in a given direction.
  • Acceleration is change of velocity per second. The unit of accerleration is m/s  .
  • Acceleration = change in velocity / time taken
  • Decerlation is the change in velocity per second when the object is slowing down.

An object moving steadily round in a circle…


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