m A \"V" \"I'M\" 4 Forces in action OCR Physics A Exam-style questions 1 a Figure 1a shows two masses, A and B, attached to a light rope. The rope passes over a xed pulley and the mass B is held at rest in contact with the ground. The mass of A is 3.0 kg. The mass of B is 1.8 kg. Figure 1a i Calculate the tension in the rope. tension = .................................... N (1 mark}