The forms for a small concrete retaining wall are shown in section. There is a brace BC fo...

The forms for a small concrete retaining wall are shown in section. There is a brace BC for every 1.5 m of wall length. Assuming that the joints at A, B, and C act as hinged connections, compute the compression in each brace BC. Wet concrete may be treated as a liquid with a density of 2400 kg/m3.