Lab 4- Projectile Motion

12. TS: a v 2 0 ∗ 2 7. Data: q =0 d=@2.55cm x 0 =0.00 cm V0= 475 cm/s V0= 743 cm/s x (cm) x2(cm2) y (cm) y (cm) 0 0 0 0 20 400 0.735 0.433 40 1600 4.42 2.27 60 3600 10.4 3.40 80 6400 15.5 6.17 100 10000 24.3 10.7 120 14400 35.8 14.4 140 19600 50.5 19.2 8. Data Analysis: 0 20 40 60 80 100 120 140 160 0 10 20 30 40 50 60 x (cm) vs y (cm) slow speed medium speed y (cm) x (cm)

The hypothesis was supported because, when the horizontal distance increased, the vertical distance increased as well due to the pull of gravity on the projectile. During this lab, the level of accuracy is fair with a with a percent error resulting in 15.2% as well as 12.4%. For both values (short and medium range) the MS presented a higher value than the TS. A systematic error that could’ve occurred for the inaccuracy in data could be that the Spark XLi gathered data at a different point than the initial crossing of the projectile, resulting in a higher value. The level of precision presented during this lab showed an outstanding result. The R2 value of the short range being 0.999 and the R2 value for the medium range being 0.9984. A random error that may have occurred to show this slight imprecision could have been fluctuations in measuring the measured data points to the initial starting line.