Question

imagine that a tank is filled with water the hight of the liquid column is 7 meters and the area is 1.5 sq meters (m™). what's the force of gravity acting on the column of water.

Answer 1

Answer - 12,900 Newtons

Step-by-step explanation

First, we find the volume of the water
Volume = Area * Heinght
= 1.5 m² x 7 m
= 10.5 m³

Covert the volume to liters
1 m³ of water = 1000 liters
10.5 m³ of water = 10.5 m³ * 1000 liters liter/m³
= 10,500 liters

Use the volume of water to calculate the mass
1 liter of water weighs 1 kg
10,500 liters of water = 10,500 * 1 kg/liter
= 10,500 kg

Now, we can calculate the force of gravity on the water
Force of gravity on the water = Weight of the water
Weight = Mass * Acceleration

Mass = 10,500kg
Acceleration (due to gravity) = 9.8 m/s²

Force of gravity on the water
= Weight of the water
= Mass * Acceleration
= 10,500 kg * 9.8 m/s²
= 102,900 Newtons