Uniformly accelerated motion and motion graphsEdexcel A-Level Physics: Mind map

Exam questions on Uniformly accelerated motion and motion graphs

1. A train leaves a station and accelerates uniformly from rest. After 40 s it has reached a speed of 20 m s⁻¹. It then continues at this constant speed.
   The train then travels at 20 m s⁻¹ for a further 90 s. Calculate the total distance travelled in the 130 s.2 marks
2. A student investigates free fall by dropping a small steel ball from rest. A timer starts when the ball is released and stops when the ball strikes a trapdoor switch 1.50 m below. Air resistance may be ignored.
   In one trial the ball takes 0.560 s to fall the 1.50 m. Calculate the value of g given by this trial.2 marks
3. A lift in a tall building starts from rest at the ground floor. It accelerates uniformly at 1.2 m s⁻² for 3.0 s, moves at constant velocity for 8.0 s, then decelerates uniformly to rest in 2.0 s.
   Calculate the maximum speed reached by the lift and the magnitude of its deceleration in the final stage.3 marks