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13 cards from this deck
Rate at which distance changes with respect to time
Scalar (magnitude only, no direction)
m s−1\text{m s}^{-1}m s−1 or m/s\text{m/s}m/s (metres per second)
Speed=distancetime\text{Speed} = \frac{\text{distance}}{\text{time}}Speed=timedistance
Overall speed for entire journey when speed varies
Average speed=total distancetotal time\text{Average speed} = \frac{\text{total distance}}{\text{total time}}Average speed=total timetotal distance
Exact speed at one specific moment in time
Measure average speed over very short time interval
Speed stays same, neither speeds up nor slows down
When speed is constant
Distance in specific direction from start to end
Vector (has magnitude and direction)
Distance: total path; displacement: straight-line with direction
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