Calculations 

                                   Calculations 

• Mass of projectile = 0.011kg 

• Time in air= 1.53s 

• Time of fall= 0.76s 

• Distance horizontal= 19m 

• Distance vertical= 2.8m

• Horizontal velocity= 12.5m/s

• Vertical velocity= 7.4m/s

• Total velocity= 14.4 m/s

• Angle of release= 31 degrees 

• PEspring= 7.1J

• KE= 1.14J

• % converted= 16%

• K= 490n