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  • Created by: Ben
  • Created on: 26-10-11 15:33

Acceleration - The change in velocity.

It is a vector quantity, and therefore can be positive or negative and therefore refers to a change in direction as well as a change in speed.

To work out the acceleration of something you need to know:

  • The velocity it started at (in metres per second) - this is written as u
  • The velocity it ends up at (in metres per second) - this is written as v
  • The time it took to change velocity (in seconds) - this is written as t.

The equation is:

                           Acceleration (m/s^2) = change


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