On a double-decker cargo vehicle, heavy goods must be loaded on the lower deck rather than the upper deck.
Why is this?
Storing heavy goods on the upper deck would cause the vehicle to become unstable.
Storing heavy goods on the upper deck would cause the vehicle to slow down.
Storing heavy goods on the upper deck would decrease the kinetic energy of the vehicle.
Storing heavy goods on the upper deck would lower the centre of mass of the vehicle.
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.