2 Check the meaning of the words in the box.
 Then read the information and answer the
 questions.
 distance time average speed
 calculate equation
 To calculate average speed, you need the
 following equation:
 distance
 - average speed
 time
 Example
 Distance: a lap was 300 metres long.
 4x 300 metres = 1,200 metres
 Time: Adams completed the 1,200 metres
 in 63 seconds
 So, average speed: 1200 – 19.05 metres
 63 per second (m/s)
 To calculate average speed in kilometres
 per hour, use this equation:
 Average speed in metres per second (m/s)
 x 3.6 - average speed in kilometres per hour
 (km/h)
 1 Look again at the table in exercise 1
 Calculate the average speed of Gollob Olsen
 and Crump, in m/s.
 2 Now calculate the average speed of all the
 riders in km/h
 :/
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