A bathtub has a drain hole covered with a plug of area 16 cm2. The bathtub contains water to a depth of 0.30 m.
The density of the water is 1000 kg m-3 and the acceleration of free fall g g\,g is 9.81 m s-2.
What is the force acting on the plug due to the water?
4.7 N4.7\text{ N}4.7 N
47 N47\text{ N}47 N
2.9 kN2.9\text{ kN}2.9 kN
4.7×104 N4.7 \times 10^4\text{ N}4.7×104 N
188 exam-style questions on CIE IGCSE Physics Pressure, covering Pressure. Each one has a worked solution and a mark scheme showing where the marks go.