Purpose:Demonstrate the independence of horizontal and vertical components of motion
Description:The "gun" is aimed at the monkey and shot. As the projectile leaves the muzzle of the gun it breaks a circuit producing the magnetic field which holds the monkey in place. The monkey then begins to fall at the same time the projectile is fired directly at the monkey. Due to independence of horizontal and vertical components of motion, the projectile will strike the monkey.
Note that the angle can be varied to show different horizontal and vertical components.