CAPE Physics Unit 1 · 2015 · Paper 2 · Question 6(d)(i)

Figure 6 shows a crane used for lifting heavy objects. The motor lifts a total mass of 1800 kg from rest on the ground. The cable supporting the mass is made from steel with a Young's modulus of 2.4 × 10^11 Pa. The cross-sectional area of the cable is 1.3 × 10^-4 m^2. As the mass leaves the ground, the strain in the cable is 0.0010. Assume the weight of the cable is negligible.

Use the Young's modulus of the steel to determine the tension in the cable.

This question uses a figure or table from the paper — you'll see it when you practise.