Physics

Problem

A train increases its speed uniformly from

54\,\text{km/h}

90\,\text{km/h}

while travelling

0.5\,\text{km}

along a straight track. What is the acceleration of the train during this interval? a)

0.5\,\text{m/s}^2

0.8\,\text{m/s}^2

0.4\,\text{m/s}^2

0.2\,\text{m/s}^2