a. Calculate the time it took the airplane to reach 100 m/s. b. What is the velocity of the airplane 12 seconds after starting to accelerate? c. Calculate the acceleration of the airplane. d. How do you know if the airplane is moving with constant acceleration?
Past paper questions
1. Final Examination 2019, Question 7 The graph below represents the journey of a cyclist.
100 150 200 250
50 0 A 0 20 :Fig. 27.21 272 Elements of Science 40 60 Time (s) 80 100 E 120 140 D