Question

# A bus accelerates from rest at 1.5 m/s2 for 12 s. It then travels at constant velocity for 25 s, after which it slows to a stop with an acceleration of magnitude 1.5 m/s2.$(b)$ What is its average velocity?

Solution

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$(b)$ In this part, we are asked to calculate the average velocity of the bus. The following data are given or calculated in part $(a)$:
\begin{aligned} \Delta{x}&=666.0\mathrm{~m}\\ \Delta{t}&=49\mathrm{~s} \end{aligned}