A hollow cylinder 1.20 m in diameter 2.5 m high weighs 4 kN.
a. Determine the weight of lead anchor fastened at the bottom of the
cylinder to make it float vertically in water with 0.5m projecting above
the water surface.
b. If the lead anchor is instead placed inside the cylinder, determine its
weight to keep the cylinder float vertically with 0.5 m projecting above
the water surface.