Question

A race car traveling northward on a straight, level track at a constant speed travels 0.739 km in 18.0 s. The return trip over the same track is made in 23.0 s.What is the average velocity (in m/s) for the total trip?answer in : m/s

Answer 1

The average velocity of an object is given by:

`\begin{gathered} v=(\Delta x)/(t) \\ \text{ where }\Delta x\text{ is the displacement and }t\text{ is the time } \end{gathered}`

In this case we know that the car travelled a track and the return on it; this means that the displacement of the car is zero and therefore, the average velocity is zero