SI units

SI units problem 22

  • Two of the SI base quantities are mass and time. State three other SI base quantities.

  • A sphere of radius is moving at speed through air of density . The resistive force acting on the sphere is given by the expression:

    where and are constants without units.

    • State the SI base units of , and .

    • Use base units to determine the value of .


main author and content editor: Joanah Frank