Units   Quantity Unit Symbol Formula Acceleration Meter per second squared ... m/s2 Angle Radian Rad Angular acceleration Radian per second squared ... rad/s2 Angular velocity Radian per second ... rad/s Area Square metre ... m2 Density Kilogram per cubic metre ... kg/m3 Energy Joule J N m Force Newton N kg m/s2 Frequency Hertz Hz s-1 Impulse Newton-second ... kg m/s Length Metre M Mass Kilogram Kg Moment of a force Newton-metre ... N m Power Watt W J/s Pressure Pascal Pa N/m 2 Stress Pascal Pa N/m 2 Time Second S Velocity Metre per second ... m/s Volume, solids Cubic metre ... m3 Liquids Litre L 10-3m3 Work Joule J N m

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