The weight of an object of mass m is equal to:
[tex]W=mg[/tex]
where [tex]g=9.81 m/s^2 [/tex] is the gravitational acceleration.
If we require a mass m to produce a force of 1 N, it means its weight is 1 N. Therefore, the required mass is:
[tex]m= \frac{W}{g}= \frac{1N}{9.81 m/s^2}=0.10 kg [/tex]
