A driver is advised to pack heavy suitcases in the boot of their car rather than in a roof box on top of the vehicle.
Why is this?
Putting heavy luggage on the roof would make the car unstable.
Putting heavy luggage on the roof would reduce the air resistance of the car.
Putting heavy luggage on the roof would decrease the kinetic energy of the car.
Putting heavy luggage on the roof would lower the centre of mass of the car.
19 exam-style questions on CIE IGCSE Physics 1.5.3 Centre of gravity and stability. Each one has a worked solution and a mark scheme showing where the marks go.