Question 1 : A diver drops from a height of 64 feet. Find the velocity at impact.Question 2 : A force of 60 pounds stretching a spring I foot. Find the work done to stretch the spring & inches beyond its natural length. Activate Window Go to Settings to activ1- Compute various interlays using integration by substitution. 2-Commute integrals using completing a square before integrating Compute each integration 1 . dx 2 . /4 - x2 1+ 6 ax 3. AT/4 sec- xetan* dx 4. xvx - 3dx Activate Windows Go to Settings to activate Windows.\f