A motorway has a speed limit of

PHYSICS · Subjective · Fermi University Physics · Scientific Practice & Experimental Methods · Quantities, units and the practice of measurement · Quantities, units and the practice of measurement

Measurement and Method, Ch What a measured value is: quantities, units and the SI

Problem

A motorway has a speed limit of 110 km h−1110\ \mathrm{km\,h^{-1}}. Using 1 km=103 m1\,\mathrm{km} = 10^3\,\mathrm{m} and 1 h=3600 s1\,\mathrm{h} = 3600\,\mathrm{s} substituted directly into the unit, express this speed in m s−1\mathrm{m\,s^{-1}}, to the nearest 0.1 m s−10.1\,\mathrm{m\,s^{-1}}.

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