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Acceleration
Acceleration is defined as the rate of change of velocity. Acceleration is inherently a vector quantity, and an object will have non-zero acceleration if its speed and/or direction is changing. The average acceleration is given by
where the small arrows indicate the vector quantities. The operation of subtracting the initial from the final velocity must be done by vector addition since they are inherently vectors.
where the small arrows indicate the vector quantities. The operation of subtracting the initial from the final velocity must be done by vector addition since they are inherently vectors.
The units for acceleration can be implied from the definition to be meters/second divided by seconds, usually written m/s2.
The instantaneous acceleration at any time may be obtained by taking the limit of the average acceleration as the time interval approaches zero. This is the derivativeof the velocity with respect to time:
| Motion equations when acceleration is constant |
Eli Priyatna 29 Apr, 2011--
Source: http://basistik.blogspot.com/2011/04/make-animated-physics-with-java_9540.html
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