Speed
Speed is the distance that an object moves in a certain amount of time. Speed is a measure of how fast something is moving.
Finding speed.
To find speed formula_1,
formula_2formula_3
where formula_4 is the distance and formula_5 is the time that has gone by.
Units of measurement for speed.
There are many units of measurement for speed. For example, an object's speed can be measured in
Changing speed.
When an object changing speed, it gets faster or slower. When the object becomes faster, and the speed increases, it is called acceleration. When the object gets slower, and the speed decreases, it is called deceleration, or negative acceleration.
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