A ship at rest on the surface of the sea transmits sound pulses straight down towards the seabed. Any pulse reflected back from the seabed is detected $1.0\,\text{s}$ after transmission. A whale passes beneath the boat and a pulse is detected $0.60\,\text{s}$ after transmission. The speed of sound in sea water is $1500\,\text{m s}^{-1}$. What is the whale’s height above the seabed?
- A$300\,\text{m}$
- B$450\,\text{m}$
- C$600\,\text{m}$
- D$750\,\text{m}$