(a(i))[2]
Calculate the work done against the resistive force on the ship during $1.0\,\text{s}$.
(a(ii))[2]
State the energy transfer that is occurring while the ship travels at constant speed.
(b(i))[2]
Calculate the ship’s initial deceleration.
(b(ii))[2]
Suggest and explain how the ship’s deceleration alters as its speed falls.
(b(iii))[2]
On Fig. 9.2, sketch a possible speed-time graph for the ship as it slows to rest.
(b(iv))[2]
Explain how the ship’s distance travelled can be obtained from the speed-time graph.
(c(i))[1]
State the relationship used to define efficiency.
(c(ii))[2]
Calculate the rate at which energy is wasted by the engines.