CSEC Physics · May/June 2008 · Paper 2 · Question 2(b)(iii)

A swimming pool 30 metres long is filled with water to a depth of 1 metre at the shallow end and 5 metres at the deep end (see Figure 2 not drawn to scale). The vertical cross-section ABCD through the pool has the shape of a trapezium with area given by: Area ABCD = ½(AB + CD) x AD.

Calculate the mass of water in the pool. [density of water = 1000 kg m⁻³]

This question uses a figure or table from the paper — you'll see it when you practise.