Answer:
m = 40.8 [kg]
Explanation:
We know that weight is defined as the product of mass by gravitational acceleration in this way we have the following equation.
[tex]W = m*g[/tex]
where:
W = weight [N] (units of Newtons)
m = mass [kg]
g = gravity acceleration = 9.8 [N/kg]
Therefore:
[tex]m=W/g\\m=400/9.8\\m=40.8[kg][/tex]