Physics 9702 · AS & A Level · Stress and strain

Stress and strain — practice question

The diagram depicts a large crane at a construction site raising a cube-shaped load. A scale model is constructed of the crane, the load and the cable that supports the load. Each part of the model is made from the same material as the corresponding part of the full-size crane, cable and load. The model is one tenth full-size in every linear dimension. What is the ratio $\dfrac{\text{stress in the cable on the full-size crane}}{\text{stress in the cable on the model crane}}$?

  • A$10^0$
  • B$10^1$
  • C$10^2$
  • D$10^3$

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