A Wooden Raft Has a Mass of 55 Kg $\left. 1000 \mathrm {~kg} / \mathrm { m } ^ { 3 } \right)$

Short Answer

A wooden raft has a mass of 55 kg. When empty it floats in water (density $\left. 1000 \mathrm {~kg} / \mathrm { m } ^ { 3 } \right)$ with 64% of its volume submerged. What maximum mass of sand can be put on the raft without sinking it?