Part of race (metres)0 – 2020 – 4040 – 6060 – 8080 – 100Time taken (seconds)2.891.751.671.611.66Question 13(2 marks)SavedExplain in which twenty-metre segment Bolt had the highest average speed.Calculate the average speed in this segment to two decimal places.Note: Write the formula using "s" for average speed. Use the maths symbols icon to write the equation. Pressing the slash "/" in this mode will program a division line in your formula.
Question
Part of race (metres)0 – 2020 – 4040 – 6060 – 8080 – 100Time taken (seconds)2.891.751.671.611.66Question 13(2 marks)SavedExplain in which twenty-metre segment Bolt had the highest average speed.Calculate the average speed in this segment to two decimal places.Note: Write the formula using "s" for average speed. Use the maths symbols icon to write the equation. Pressing the slash "/" in this mode will program a division line in your formula.
Solution
To find out in which twenty-metre segment Bolt had the highest average speed, we need to calculate the average speed for each segment. The average speed is calculated by dividing the distance by the time. In this case, the distance for each segment is 20 metres.
The formula for average speed (s) is:
s = distance/time
For each segment:
- 0 – 20 metres: s = 20/2.89 = 6.92 m/s
- 20 – 40 metres: s = 20/1.75 = 11.43 m/s
- 40 – 60 metres: s = 20/1.67 = 11.98 m/s
- 60 – 80 metres: s = 20/1.61 = 12.42 m/s
- 80 – 100 metres: s = 20/1.66 = 12.05 m/s
From these calculations, we can see that Bolt had the highest average speed in the 60 – 80 metre segment, with an average speed of 12.42 m/s.
Similar Questions
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