Area of the Blade	Descension Time from 12 ft drop										
X / cm	 Time / s	 								Area of the Blade (squared cm)	Time to descend from a 12 foot drop (s)
  +/- 0.05 cm	Trial 1	Trial 2	Trial 3	Trial 4	Trial 5	Average	Uncertainty			173.8	3.364
172.8 (16 x10.8) 	3.48	3.34	3.47	3.28	3.25	3.36	0.12			152.9	3.15
151.9 (15.5 x 9.8)	3.01	3.20	3.24	3.00	3.30	3.15	0.15			132	2.938
132 (15 x 8.8)	2.94	3.04	2.87	2.86	2.98	2.94	0.09			113.1	2.84
113.1 (14.5 x 7.8)	2.88	2.79	2.71	2.90	2.92	2.84	0.11			95.2	2.676
95.2 (14 x 6.8)	2.75	2.73	2.68	2.61	2.61	2.68	0.07			78.3	2.592
78.3 (13.5 x 5.8)	2.52	2.64	2.65	2.55	2.60	2.59	0.07			52.4	2.5
62.4 (13 x 4.8)	2.55	2.53	2.45	2.49	2.48	2.50	0.05			47.5	2.462
47.5 (12.5 x 3.8)	2.44	2.43	2.57	2.39	2.48	2.46	0.09			33.6	2.26
	2.22	2.35	2.25	2.19	2.29	2.26	0.08			20.7	2.08
20/7 (11.5 x 1.8)	1.98	2.11	2.06	2.15	2.10	2.08	0.09				
											
											
											
Area of the Blade ( +/- 0.05 cm)	Average (s)	Uncertainty (s)									
172.8 (16 x10.8) 	3.36	0.12									
151.9 (15.5 x 9.8)	3.15	0.15									
132 (15 x 8.8)	2.94	0.09									
113.1 (14.5 x 7.8)	2.84	0.11									
95.2 (14 x 6.8)	2.68	0.07									
78.3 (13.5 x 5.8)	2.59	0.07									
62.4 (13 x 4.8)	2.50	0.05									
47.5 (12.5 x 3.8)	2.46	0.09									
33.6 (12 x 2.8)	2.26	0.08									
20/7 (11.5 x 1.8)	2.08	0.09