As you found out while solving Part C, the only force acting on Tarzan that does work on him is gravity. An important property of gravity is that the work done by this force on a body moving along a curved path is the same as if the body were displaced vertically. Therefore, you can evaluate your previous work using the kinematics equations for free fall. What vertical distance Delta y does a free-falling particle travel from the moment it starts to the moment it reaches a speed of 7.9 m/s if it starts from rest? Work out your solution using one of the equations for vertical motion with constant acceleration, specifically, where upsilon 1 and upsilon f are, respectively, the particle's initial and final speed, and a is the particle's acceleration. Express your answer in meters to two significant figures.