Acceleration is defined as the rate of change of velocity within a given time duration.
If the initial velocity is 'u' and the final velocity is 'v', and the time duration is 't', then the acceleration 'a' is given by,
[tex]a=\frac{v-u}{t}[/tex]According to the given data in the problem,
[tex]\begin{gathered} u=3 \\ v=5.4 \\ t=15 \end{gathered}[/tex]Substitute the values,
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