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SPEED AND SAFETY

1 mile = 1609 metres 1 minute = 60 seconds 1 hour = 60 minutes

To change miles per hour to metres per second, we divide the number of metres in a mile by
the number of seconds in an hour:

1 m.p.h. (1 m/h) = 1609…

Page 2

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60 55
70 31.5 21 75 96

These distances are doubled in wet conditions, complete the final column.

How do you think the thinking distance would change if a driver was a) tired and b) had
been drinking alcohol?

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