Hi , I'm new here =) . This is from my homework . My teacher let us do the ticker timer's experiment with 50 GHz . after that , we r suppose to calculate the total displacement and the average velocity and also the acceleration of the trolley . we cut the tape into 5-tick strips and pasted into a graph . The graph show .... err a constant acceleration i guess , coz it's going up . But then how am i suppose to calculate the total displacement and average velocity ? Please help =) . sorry for my bad english x( , i'm from malaysia ^^" .