And finally...thinking laterally

[Acknowledgement: ‘Thinking Physics’, author L.C. Epstein ]

Here is a problem which illustrates the final guideline [Guideline 0.11].

Consider the two bikers shown in the figure. They start 20 miles apart and cycle steadily towards one another, each moving at 10 mph. Meanwhile a bee goes back and forth between them, flying at 25mph.

The question: how far does the bee travel before it is ruthlessly squashed between the bikers?

You can make this quite difficult. Or you can make it easy by looking from a different angle....

Graphic - No title - lateralsoln