1.) A 15 kg mass is dropped from rest a distance of 18 m above the ground. Make certain you show all your work: a. Draw a picture. b. Indicate on your drawing where KE = D and where PE = 0 c. Using Conservation of Energy determine the nal speed of the object jIIst before it strikes the ground. ' d. Next, again showing all your work ,use 1-dimensional Kinematics to solve the same problem. e. Which method, in your opinion is easier