1438

Physics Work,Power & Energy Level: High School

The launching mechanism of a toy gun of a spring of unknown spring constant , as shown in the figure at “click here” . If the spring is compressed a distance of 0.140 m and the gun fired vertically as shown in the figure at “click here” , the gun can launch a 17.0 g projectile from rest to a maximum height of 15.1 m above the string point of the projectile . Neglecting all resistive force ,

(i) Determine the spring constant

(ii) Determine the speed of the projectile as it moves through the equilibrium position of the spring (where x = 0 )