A trailer with weight $30\,\text{kN}$ is attached to a cab at X, as shown in the diagram. What is the upward force applied by the cab on the trailer at X?
- A$3\,\text{kN}$
- B$15\,\text{kN}$
- C$30\,\text{kN}$
- D$60\,\text{kN}$
Physics 9702 · AS & A Level · Equilibrium of forces