Find the initial speed

Data Taibile I Trial launches ato ige Distance Traveled Time of Flight Initial Speed (m) [m/s) 10.8 m 28 die 67. 2km 92 74 m .45 Data Table II Trial launches at 30" ge Distance Traveled Time of Flight Initial Speed (m) (m/s) 45, 125 m lle 86. 35 m 57 132. 8m