The acceleration for the runner is 0.25 m/s².
What do you mean by Acceleration ?
It is the rate at which velocity changes with time, in terms of both speed and direction.
A point or an object moving in a straight line is accelerated if it speeds up or slows down.
The formula for calculation of Acceleration is [tex]\rm \dfrac{velocity}{time}[/tex]
In this question the given data is
Velocity final = 3 m/s
time = 12 s
[tex]\rm Acceleration = \rm \dfrac{3}{12}[/tex]
[tex]\rm Acceleration = \rm \dfrac{1}{4}[/tex]
Acceleration = 0.25 m/s²
Therefore the acceleration for the runner is 0.25 m/s².
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