A bicycle travels along a straight road where its velocity is described by the v-s graph. Construct the a-s graph for the same interval.
Acceleration of the bicycle is expressed as
\(a=\frac{v d v}{d s} \quad---(1)\)
For \(0 \leq t<40 \mathrm{~s}\) :
\(v=0.5 \mathrm{~s}\)
Accordingly, we have from (1)
\(a=(0.25 s) \times \frac{d}{d s}(0.25 s)\)
\(a=(0.0625 s) \quad---(2)\)
$$ \begin{array}{l} \text { At } s=40 \mathrm{~s} \text { : We have from }(2) \\ \qquad \begin{array}{l} \left.a\right|_{\text {40s }}=(0.0625 \times 40) \\ \left.a\right|_{40 \mathrm{~s}}=2.5 \mathrm{~m} / \mathrm{s}^{2} \\ \left.a\right|_{40 \mathrm{~s}}=2.5 \mathrm{~m} / \mathrm{s}^{2} \rightarrow \end{array} \end{array} $$
The graph is plotted based on the data is as shown below: