<PRE><B>Question 1160717</B>
.
&lt;pre&gt;

The speed is  V = 90 km/h = 90000 m/h = {{{90000/3600}}} m/s = 25 m/s.



The acceleration is  a = {{{V/t}}} = {{{25/20}}} = {{{5/4}}} m/s^2 = 1.25 m/s^2     &lt;U&gt;ANSWER&lt;/U&gt;
&lt;/pre&gt;

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It is &amp;nbsp;&lt;U&gt;deceleration&lt;/U&gt;,  &amp;nbsp;in this case,  &amp;nbsp;instead of acceleration.


Solved, &amp;nbsp;answered, &amp;nbsp;calculated, &amp;nbsp;explained and completed.




</PRE>