6 Sam goes on a diet. He assumes that his mass, \(m \mathrm {~kg}\) after \(t\) days, decreases at a rate that is inversely proportional to the cube root of his mass.
6
- Construct a differential equation involving \(m\), \(t\) and a positive constant \(k\) to model this situation.
6 - Explain why Sam's assumption may not be appropriate.