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Take a Message Soldier

A messenger runs from the rear to the head of a marching column and back. When he gets back, the rear is where the head was when he set off. What is the ratio of his speed to that of the column?

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Alternative Record Book

In which Olympic event does a human travel fastest? Decide which events to include in your Alternative Record Book.

Dangerous Driver?

Age 16 to 18 Challenge Level:
What equations of mechanics do you know which relate to acceleration?

Don't forget units.

Don't forget to consider carefully the validity of any modelling assumptions, such as that of constant acceleration.