The launching mechanism of a toy gun consists of a spring ofunknown spring constant. If its spring is compressed adistance of 0.120 m and the gun firedvertically as shown, the gun can launch a 22.0 g projectile to a maximum height of18.0 m above the starting point of theprojectile. Neglecting all resistive forces, determine the springconstant.and..Neglecting all resistive forces, determine the speed of the projectile as it moves through the equilibrium position ofthe spring (where x = 0).