A cargo container is being lifted vertically by a crane. The total weight of the container is 8500 N.
The vertical upward force exerted by the crane on the container is 9600 N.
What is the resultant force on the container?
1100 N1100\text{ N}1100 N downwards
1100 N1100\text{ N}1100 N upwards
18 100 N18\,100\text{ N}18100 N downwards
18 100 N18\,100\text{ N}18100 N upwards
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.