please help me to find : Effective distance of the flag (m)

Linear air track part A (Determination of the flatness of the air track) Effective distance of the flag (m) Distance Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 V screen V cal V * cal h (m) of the V(m/'s) V(m/'s) V(m/s) V(m/'s) V(m/'s) average and photogates Screen Screen Screen Screen Screen time average (cm) Time (s) Time (s) Time (s) Time (s) Time (s) 30 60 t: 90 120 1. Calculate the average velocity using the effective distance of the flag and the average time for each photogate 2. Calculate the average of the average V screen and V cal to calculate the % error using the formula below: % Error = # experimental - #theoretical #100 # theoretical Experimental value = Vcalculated Dr Mbule P, Mr Mnisi BO and Mr Maloba M-Air Track Experiment Theoretical value = Varemm 3. Calculate the height for each distance of the photogate (choose one distance 30 or 60 or 90 or 120 cm to show as an example). We need to see only one calculation of the height. 4. Calculate the standard error in the mean for velocity squared and height values respectively. Part B (Determination of coefficient of restitution (e) XI X 2 X 2 Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 20 40 100 120 140 5. Your task to do (Please rearrange the following equation below to look like the straight-line equation. Y = MX +C e= X z A small hint X2=..... .. to find the relationship between coefficient of restitution (e) and the slope of the graph. Hence e =...... ..... (5) 6. Now you would have found the (e) which is the aim of our part b then calculate the error in e (e) using the expression in equation (5) applying the proportional error equation of exponents. Dr Mbule P, Mr Mnisi BO and Mr Maloba M-Air Track Experiment