Answer:
m = 0.409 [kg].
Explanation:
The friction force is defined as the product of the coefficient of friction by the normal force. In this way, we have the following equation.
F = μ*N
Where:
F = friction force = 1.11 [N]
μ = static coefficient = 0.276
N = Normal force [N]
We can clear the normal Force.
[tex]N=F/u\\N=1.11/0.276\\N=4.02[N][/tex]
And the normal force of a body lying on a horizontal surface, can be calculated by means of the product of mass by gravitational acceleration.
[tex]N=m*g\\4.02=m*9.81\\m=0.409[kg][/tex]
