The graph above shows two athletes Harry and Kirani competing in a 400 metre race.Name: Date:

1) Harry runs at a constant speed. Calculate his average speed correct to 2 decimal places.

2) After how many seconds into the race are Harry and Kirani level.

3) Who won the race and by how many seconds?

4) How far did run Harry after 20 seconds? (give your answer to the nearest 5m)

5) What was Kirani's speed 23 seconds into the race? (give your answer to 1 decimal place)

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2) The two runners are level after 21 seconds.

3) Kirani won the race by 5 seconds.

4) 150 metres

5) 4.4 m/s

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# Answers

1) 400m in 53 seconds => average speed of 7.55 m/s2) The two runners are level after 21 seconds.

3) Kirani won the race by 5 seconds.

4) 150 metres

5) 4.4 m/s

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