Physics (AS & A Level) · Feb / March 2018 · Paper 12 · Question 20

The diagram shows a large crane on a construction site lifting a cube-shaped load at a constant speed. [diagram of crane lifting load with labels: cable, crane, load] A model is made of the crane, its load and the cable supporting the load. The material used for each part of the model is the same as that in the full-size crane, cable and load. The model is one tenth full-size in all linear dimensions. What is the ratio $\dfrac{\text{stress in the cable on the full-size crane}}{\text{stress in the cable on the model crane}}$?

1. A0.1
2. B1
3. C10
4. D100

As printed in the paper