Average acceleration …
Toward bright spark; The average acceleration can be defined as below:
The ratio of the velocity vector change to the time spent on this change. The unit of average acceleration in SI is m/s2:
For instance, in the following figure the body undergoes acceleration because the velocity vector is changing:
It should be noted that the above figure is about a two-dimensional movement which is beyond the scope of the current chapter.
- Acceleration is non-zero when the velocity vector changes. To produce acceleration the velocity vector should change due to one of the following reasons:
- The magnitude of the velocity vector (speed) changes.
- The direction of the velocity vector changes.
- Both the magnitude and direction of the velocity vector change.
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