Question

A 2-kg plastic tank that has a volume of 0.2m^3 is filled with water. Assuming the density of water is 999 kg/m 3 ; determine the weight of the combined system.

Answer 1

Mass of the combined system = 201.8 Kg

Weight of the combined system = 1977.64 N

Step-by-step explanation:

Given:

Mass of the plastic tank = 2 kg

Volume of the plastic tank = 0.2 m³

Density of water = 999 Kg/m³

Now, the volume of water in the tank = volume of tank = 0.2 m³

Also,

Mass = Density × Volume

therefore,

Mass of water = 999 × 0.2 = 199.8 Kg

Thus, the combined mass = Mass of tank + Mass of water in the tank

or

the combined mass = 2 + 199.8 = 201.8 Kg

Also,

Weight = Mass × Acceleration due to gravity

or

Weight = 201.8 × 9.8 = 1977.64 N