<P> The metre per second squared is the unit of acceleration in the International System of Units (SI). As a derived unit, it is composed from the SI base units of length, the metre, and time, the second . Its symbol is written in several forms as m / s, m s or m s, or less commonly, as m / s / s . </P> <P> As acceleration, the unit is interpreted physically as change in velocity or speed per time interval, i.e. metre per second per second and is treated as a vector quantity . </P>

A quantity of 5 m/s2 is a measure of