1. The problem statement, all variables and given/known data A plank is raised at one end in order to form an inclined plane. A light freely running trolley travels from rest down the plane. The times taken to travel from different points to the lower end of the plank are measured and the following results obtained Distance (cm) 0 50 100 150 225 325 Time (s) 0 1.4 2.0 2.5 3.0 3.6 Draw a graph to show that the acceleration is uniform and calculate its value. Use this value to calculate the velocity which the trolley would acquire if it travelled 400 cm from rest along the same inclined plane. 2. Relevant equations 3. The attempt at a solution I have actaully drawn the graph but the answer I got is not ryming with the answer provided for the question. The scale I used was: 2cm for 25 units on distance axis (vertical or y axis). 2cm for 0.5 unit on time axis (horizontal axis or x axis). The slope I got was 109.1cm. Another thing that suprised me was that the straight line I got when I joined the points did not pass through the origin; it went a cut the horizontal axis at exctaly 1 sec i.e intercept =1 second . That affected all my calculation badly. What could have been done, am confused.