Module 1: Using Formulae 1

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Algebra - Speed

Speed

What is speed?

For many people speed means fast; but speed can also be slow.

Speed is a measure of the rate at which distance is covered or travelled.

Imagine how long it takes to walk 5 kilometres; this takes a long time at
a slow speed. Imagine how long it takes to drive a car 5 kilometres; this
takes a shorter time at a faster speed. Imagine a jet aircraft travelling
over the same distance of 5 kilometres; this takes a very short time at a
very fast speed.

The average speed is calculated by the formula:

where_ s_=average speed; _d_=distance travelled, and;_ t_=time taken

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