A student stands with both feet on the floor. Each foot has a contact area of 150 cm2. The pressure on the floor is 18000 Pa. The student then stands on one foot while holding a bag of weight 60 N. What is the new pressure on the floor?
20000 Pa20000\ \mathrm{Pa}20000 Pa
22000 Pa22000\ \mathrm{Pa}22000 Pa
36000 Pa36000\ \mathrm{Pa}36000 Pa
40000 Pa40000\ \mathrm{Pa}40000 Pa
132 exam-style questions on Edexcel GCSE Physics 15.2 Pressure in fluids, covering 15.2.1 Atmospheric pressure and height, 15.2.2 Pressure in fluids, 15.2.3 Pressure, force and area, 15.2.4 Pressure and depth, 15.2.5 Pressure in liquids: depth and density, 15.2.6 Upthrust, and 15.2.7 Floating and sinking. Each one has a worked solution and a mark scheme showing where the marks go.