Answer:
Because the weight depends of the gravity
Explanation:
This is because weight and mass are different, in order to better understand this problem we will apply an example with real values, which will help us to determine a person's weight.
A man has a mass of 80 [kg] on Earth when measuring his weight he realizes that it is 784.9 [N] and on the moon it is 130.8 [N]
On Earth
[tex]g_{e} = 9.81[m/s^2]\\g_{m} = 1.635[m/s^2][/tex]
Where:
g = gravity
Weight on the moon
Wm = 80 * 1.635
Wm = 130.8[N]
Weight on the earth
We = 80 * 9.81
We = 784.8[N]
In this way we can see that the weight depends on the gravity of where the person is located.