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Analysing Usain Bolt using GeoGebra/Document: Difference between revisions
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Analysing Usain Bolt using GeoGebra/Document (view source)
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<center>[[Image:BoltImage2.png]]</center> | <center>[[Image:BoltImage2.png]]</center> | ||
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Looking at the acceleration-time graph we see there is a minimum at A<sub>1</sub>, a maximum at A<sub>2</sub> and a zero at A<sub>z</sub>. These correspond to the inflections of the velocity at V<sub>1</sub> and V<sub>2</sub>, and the maximum at V<sub>m</sub>. The initial acceleration off the starting blocks, at A<sub>s</sub>, is estimated at 8.813 ms<sup>-2</sup>, and by the finish, at A<sub>w</sub>, his acceleration appears to be -3.481 ms<sup>-2</sup>. Remember we are not modelling Bolt’s movement stride by stride – which is a pretty complex dynamical system. Think instead of being the operator of the remote controlled camera running smoothly on a track alongside Bolt speeding up and slowing down to match where Bolt currently is! | Looking at the acceleration-time graph we see there is a minimum at A<sub>1</sub>, a maximum at A<sub>2</sub> and a zero at A<sub>z</sub>. These correspond to the inflections of the velocity at V<sub>1</sub> and V<sub>2</sub>, and the maximum at V<sub>m</sub>. The initial acceleration off the starting blocks, at A<sub>s</sub>, is estimated at 8.813 ms<sup>-2</sup>, and by the finish, at A<sub>w</sub>, his acceleration appears to be -3.481 ms<sup>-2</sup>. Remember we are not modelling Bolt’s movement stride by stride – which is a pretty complex dynamical system. Think instead of being the operator of the remote controlled camera running smoothly on a track alongside Bolt speeding up and slowing down to match where Bolt currently is! | ||
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Here we can gather together all the analysis visually in a single Graphics View, with the relevant data shown in a table within a single Spreadsheet View. | Here we can gather together all the analysis visually in a single Graphics View, with the relevant data shown in a table within a single Spreadsheet View. | ||
