What is the minimum volume (in m3 ) of a block of wood (density 850 kg/m3 ) if it is to hold a 150 kg man entirely above the water when he stands on it?

Answer 1

1000Vg≥ 850Vg + 150g; 150V ≥ 150; v ≥ 1. So, minimu volume is 1m³.