Question

Determine the force with which kerosene acts on a square plug with a cross-sectional area of ​​16 centimeters squared if the distance from the plug to the level of kerosene in the vessel is 400 millimeters

Answer 1

$$S=0.0016m^2$$

$$h=0.4 m$$

$$g=10 N/kg$$

$$\rho =800 kg/m^3$$

$$F=pS$$

$$p=\rho gh$$

$$p=800\times10\times 0.4=3200 Pa$$

$$F=3200\times 0.0016=5.12 N$$