Flag length (m), reading Flag length (m), reading 2 10 7m Flag length (m), average Position of center of glider, x_0 (m) 100m Height of point 2 (cm) 29.5cm Height of point 1 (cm) 28cm Distance between points 1 & 2 (cm) 50.4cm sin theta 0.56 Probable error of length measurements (m) 0.001m Probable percent error in flag length 14.1 Probable error of difference in heights (cm) 0.1cm Probable percent error of difference in heights 40.7cm Probable percent error of length between points -49.6 Probable percent error in sin theta Probable error time measurements (s) standard value of 'g' (m/s^2) 9.8 Average acceleration (m/s^2) 'g' calculated from avg. acc. (m/s^2) % error in 'g' calculated from average acc. probable % error in average acc. Probable % error in 'g" calculated from average acc. Slope of graph, ((x-x_0) vs. t^2) acceleration from slope (m/s^2) 'g' calculated from slope (m/s^2) percent error in 'g' calculated from slope standard error in slope Probable percent error in slope Probable percent error in 'g' calculated from slope