When loading cargo onto a container ship, operators are instructed to avoid placing the heaviest containers on the upper deck, preferring to load them lowest in the hull.
Why is this?
Placing heavy cargo on the upper deck would raise the centre of mass, making the ship less stable.
Placing heavy cargo on the upper deck would increase the ship's top speed.
Placing heavy cargo on the upper deck would increase the water resistance acting on the ship's hull.
Placing heavy cargo on the upper deck would lower the centre of mass, making the ship more stable.
245 exam-style questions on CIE IGCSE Physics 1.5 Forces, covering 1.5.1a Forces, resultant force and motion, 1.5.1b Load–extension graphs and the spring constant, 1.5.1c Friction and drag, 1.5.1d Force, mass and acceleration, 1.5.1e Motion in a circular path, 1.5.2a Moment of a force, 1.5.2b Principle of moments and equilibrium, and 1.5.3 Centre of gravity and stability. Each one has a worked solution and a mark scheme showing where the marks go.