MJ22 P23 Q3 Car Resistive Forces Graph | May/June 2022 | Cambridge A Level 9702 Physics скачать в хорошем качестве

MJ22 P23 Q3 Car Resistive Forces Graph | May/June 2022 | Cambridge A Level 9702 Physics

9702/23/M/J/22: (a) Define velocity. (b) A constant driving force of 2400 N acts on a car of mass 1200 kg. The car accelerates from rest in a straight line along a horizontal road. Assume that the resistive forces acting on the car are negligible. (i) Calculate the acceleration of the car. (ii) On Fig. 3.1, sketch a graph showing the variation with time t of the velocity v of the car for the first 20 seconds of its motion. (c) In reality, a resistive force due to air resistance acts on the car in (b). This resistive force increases with speed until it becomes equal in magnitude to the driving force at time t = 12 s. (i) On Fig. 3.1, sketch a second line to show the variation with time t of the velocity v of the car for the first 20 seconds of its motion. Label this line B. (ii) At time t = 20 s, the driving force is increased to 3000 N and remains constant at this value. Describe how the velocity of the car changes due to this increase in the driving force. #9702s22p23 #ASdragForceP2 #Lv2 AS #Dynamics Playlist    • Ch3 Dynamics | CAIE 9702 AS Physics   MJ22 Paper Discussion Playlist:    • 9702 MJ22 Papers CAIE Physics   Instagram Pocket Guide (  / etphysics  ) More Resources (https://9702-physics.blogspot.com/) Support us! (  / etphysics  ) Tuition/Tutoring inquiries: Email: [email protected] Whatsapp: https://wa.me/60126679171 (Ms Lee) https://linktr.ee/etphysics 9702_s22_qp23 #CambridgeALevelPhysics