Question

I rode my bicycle to grandmother's house at 6 km/h in a flat road for 5 min before reach a hill. I went at 2 km/h up the hill for 3minutes. I met a friend and stopped to talk for 5 minutes. I went on at 2 km/h to my grandmother's house. Draw (plot) the v against t graph for this motion.​

Answer 1

The graph can be plotted based on the given information which are given

in pairs (velocity and time), and which the coordinate pairs are formed.

• Please find attached the required v against t graph created with MS Excel

Reasons:

The given data are presented in a tabular form as follows;

$\begin{tabular}{|c|c|c}\underline{Duration (Minutes)} & \underline{Speed (km/h)}\\0 - 5 &6 \\5 - 8&2\\8 -13&0&\\13- &2&\end{array}$

The velocity time graph can be plotted using the above table values on

MS Excel using the above table elaborated as follows;

$\begin{tabular}{|c|c|c}\underline{Duration (Minutes)} & \underline{Speed (km/h)}\\0 &6 \\5&6\\5 &2\\8&2\\8&0\\13&0&\\13 &2&\end{array}$

The attached graph can then be created using the Insert → Chart menu

after selecting the data above inputted in the spreadsheet button on MS

Excel.

Learn more about velocity time graph here:

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