Consider a frictionless Atwood machine (pictured below). Assume that mz > m, m2 a.) Draw free-body diagrams for both masses and indicate the coordinate system and direction of acceleration. b.) Determine the acceleration in terms of m1, m2 and g. 5. A book of mass m is dropped off a building of height h from the ground. A distance l is halfway between the ground and the top of the building. a.) Determine the velocity of the book when it is striking the ground in terms of m, g and h. b.) Write out (in full) expressions for Mechanical Energy when the book is at height h, at height l, and on the ground