An adult researcher needs to cross a stretch of soft, wet mud to rescue a small animal that has become trapped. The researcher has a much greater weight than the animal.
Explain why it would be unsafe for the researcher to walk normally across the wet mud to rescue the animal.
Suggest and explain what the researcher could do to cross the mud safely without sinking.
188 exam-style questions on CIE IGCSE Physics Pressure, covering Pressure. Each one has a worked solution and a mark scheme showing where the marks go.