2024 FHSS P2 PRELIM QP

Candidate Name: Class: Index No.: FUHUA SECONDARY SCHOOL 4E Secondary Four Express PRELIMINARY EXAMINATION 2024 Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School PHYSICS 6091/02 Paper 2 DATE 21 Aug 2024 TIME 1115 – 1300 DURATION 1 hour 45 minutes READ THESE INSTRUCTIONS FIRST Write your name, class and register number on the question paper and work you submit. Write in dark blue or black pen. You may use an HB pencil for any diagrams or graphs. Do not use staples, paper clips, glue or correction fluid/ tape. Section A Answer all questions. Section B Answer one question. Candidates are reminded that all quantitative answers should include appropriate units. The use of an approved scientific calculator is expected, where appropriate. Candidates are advised to show all their working in a clear and orderly manner, as more marks are awarded for sound use of Physics than for correct answers. The number of marks is given in brackets [ ] at the end of each question or part question. FOR EXAMINER’S USE PARENT’S SIGNATURE Section A Section B Total /70 /10 /80 Setter: Mr Raymond Loh Vetter: Mr Nicholas Liu This document consists of 17 printed pages and 1 blank page, including this page.

2 Section A Answer all questions in this section. 1 Fig. 1.1 shows an aircraft of mass 60 000 kg making its take-off run from rest. The engines produce a constant forward thrust of 145 000 N. Throughout the take -off run, the total resistive force acting on the aircraft can be assumed as being constant at 40 000 N. Fig. 1.1 (a) Calculate the acceleration of the aircraft along the horizontal runway. acceleration = ……………….. [2] (b) Calculate the duration of the take-off run if the aircraft becomes airborne at a speed of 60 m / s. duration = ……………….. [2] (c) Hence, calculate the distance the aircraft was on the runway before it becomes airborne. distance = ……………….. [2] (d) In reality, resistive forces during the take -off run vary. Explain the r