There is water in the cistern of the street watering machine. Determine the changes in mass

There is water in the cistern of the street watering machine. Determine the changes in mass and weight of the machine if it spills V = 400 liters of water.

These tasks: V (volume of water spilled from the tank) = 400 l (in SI V = 0.4 m3).

Reference values: ρw (density of spilled water) = 1000 kg / m3; g (acceleration due to gravity) = 9.81 m / s2.

1) Determine the change in the mass of the street watering machine: Δm = ρw * V = 1000 * 0.4 = 400 kg.

2) Change in machine weight: ΔP = Δm * g = 400 * 9.81 = 3924 N.

Answer: The mass of the street watering machine will decrease by 400 kg; weight will decrease by 3924 N.