... 9.8 N. Formulas used. U = Muzzle Velocity (velocity that projectile leaves the gun, measured in meters per second [m/s], in this case Muzzle Velocity is always 400m/s ) a = Acceleration due to gravity, rounded to a constant 9.8 meters /s/s Uy = Vertical Velocity Ux = Horizontal Velocity In order to calculate the flight time of the projectile, i.e. the amount of time the projectile stays in the air, the actual velocity as it leaves the gun must be resolved into a vertical component. The vertical component, Uy is calculated by using the formula: Uy = U Sine? i.e. the Muzzle Velocity multiplied by the Sine of the Muzzle's Angle of Elevation. Sine in trigonometric terms refers to the side opposite the known angle (?). The horizontal component Ux is calculated in a similar way, this time by using the formula: Ux = U Cosine? i.e. the Muzzle Velocity multiplied by the Cosine of the ...

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