FM22 P22 Q3 Water Jet Pressure | Feb/March 2022 | Cambridge A Level 9702 Physics

9702/22/F/M/22: A jet of water hits a vertical wall at right angles, as shown in Fig. 3.1. The water hits the vertical wall with a velocity of 5.0 m s–1 in a horizontal direction. The cross-sectional area of the jet is 1.5 × 10^–4 m2. The density of the water is 1.0 × 10^3 kg m–3. The water runs down the wall after hitting it. #9702m22p22 #ASnewton2ndP2 #ASnewton2ndMassP2 #ASmomentumP2 #ASpressureP2 #Lv2 (a) Show that, over a time of 1.6 s, the mass of water hitting the wall is 1.2 kg. (b) Calculate: (i) the decrease in the horizontal momentum of the mass of water in (a) due to hitting the wall (ii) the magnitude of the horizontal force exerted on the water by the wall. (c) State and explain the magnitude of the horizontal force exerted on the wall by the water. (d) Calculate the pressure exerted on the wall by the water. #Dynamics Playlist    • Ch3 Dynamics | CAIE 9702 AS Physics   FM22 Paper Discussion Playlist    • 9702 FM22 Papers CAIE Physics   Instagram Pocket Guide (  / etphysics  ) More Resources (https://9702-physics.blogspot.com/) Support us! (  / etphysics  ) Tuition/Tutoring inquiries: Email: suitlin@gmail.com Whatsapp: https://wa.me/60126679171 #CambridgeALevelPhysics 9702_m22_qp22