Speed and acceleration

problem
Four on the road

Age

14 to 16

Challenge level

Four vehicles travel along a road one afternoon. Can you make sense of the graphs showing their motion?
problem
How do you react?

Age

14 to 16

Challenge level

To investigate the relationship between the distance the ruler drops and the time taken, we need to do some mathematical modelling...
problem
Swimmers

Age

14 to 16

Challenge level

Swimmers in opposite directions cross at 20m and at 30m from each end of a swimming pool. How long is the pool ?
problem
Alternative record book

Age

14 to 18

Challenge level

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

Age

14 to 18

Challenge level

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?
problem
Dangerous driver?

Age

16 to 18

Challenge level

Was it possible that this dangerous driving penalty was issued in error?