Trial Sphere VX= t= Calculated Actual Percent 0.71 (9.8)sine v(2as) V(2h/g) Distance Distance Difference X= Vit Steel 6.79 23.45 2.39 56.05 37.5 cm 33.09% 2 Steel +50 1.54 11.17 2.39 26.7 32.5 cm -21.72% 3 Steel +10- 2.12 13.10 2.39 31.31 46.4 cm -48.20% 4 Acrylic 6.79 23.45 2.39 56.05 39.3 cm 29.88% 5 Acrylic +50 1.54 11. 17 2.39 26.7 46.5 cm -74.16% Acrylic +109 2.12 13.10 2.39 31.31 63 cm -101.215