Physics · May / June 2022 · Paper 21 · Question 1

Fig. 1.1 shows a model of the human arm. The rubber band represents the muscle that moves part of the arm XY up. A mass is suspended from XY, as shown in Fig. 1.2. The weight of section XY is negligible and the model is at rest. rubber band pivot X Y X Y rubber band pivot 2.0 cm 16 cm mass Fig. 1.1 Fig. 1.2 (not to scale)

Read automatically from the paper; the printed page above is exact.