A scuba diver wears a heavy belt to make her average density exactly equal to the density of water. Her mass, including the belt and all her gear, is 75 kg.
a) What is the weight of the scuba diver and all her gear, in Newtons?
b) What is the scuba diver's volume, in m3?
c) At a depth of 5 m below the surface of a lake, what buoyant force acts on the scuba diver? What net force acts on her?