(1) Explain why the feet of camels and wading birds have the shapes that they have. (2) Two birds have the same mass, but one has much bigger feet. How would the pressure that they produce on the ground be different?
(3) What would happen if you tried using a road bike to ride across a soft surface? Explain your answer.
(4) Two horses have hooves of about the same area. Horse A has a much bigger mass than horse B. How would the pressure they produce on the ground be different?