• 9702 June 2018 Paper 21 Worked Solution | A-Level Physics

Question 1
An aircraft is travelling in wind. Fig. 1.2 shows the velocities for the aircraft in still air and for the wind.



Question 3
An aircraft of mass 1200 kg climbs upwards with a constant velocity of 45 m s-1, as shown in Fig. 3.1.




Question 4
Fig. 4.1 shows the variation with time t of the displacement x of two progressive waves P and Q passing the same point.